God will not guarantee you will be free from suffering in this life. First of all He didn't cause it. Second of all, He never promised us we would not suffer. Third, He constantly intervenes to help save us from our stupid decisions. Fourth, he has guaranteed we will never suffer again after we die, if we would only choose to believe in Him.
It is a complex and scary world. What then is the solution to suffering? Use common sense, be important enough (but not too important), learn as much as you can, and communicate that to others, all to prevent avoidable suffering. This is difficult to accept, but we need to be the vehicle, for the prevention of our own and the planet's suffering.
Some of the best ways to suffer, as little as possible are: trust people to only do what they think is in their best interest, do not stand in the way of wealthy and powerful people, do not stand out or be famous, avoid getting addicted to anything, expect things to not work and for things to fall apart. Be happily surprised, when things do work out.
Our civilization may collapse, at any time, just as we may die at any time. We have peaked a while back and making money and dealing with the government will get worse and worse. Nothing will remain secret, things will cost almost nothing, but few people will have a job at all, we will have a huge die off of animals, huge sea level rise, much more extreme weather, insects and disease will be out of control, corporations will rule in place of government (as they are even now basically the same thing), and our country will become a third world country (and other countries will do much worse).
Do not look for hope, in the world of money and science. We have created the ultimate society, that human minds can create. This is what is killing us: we all live like kings did in the past. The world cannot provide a life like a king, for billions of people, but we will try. Things cannot grow forever.
The earth is finite and getting to other planets is many times more difficult, than the average person believes. Even with many times more severe climate change and environmental damage, it would be much cheaper and easier to fix the Earth, then to get to another planet, which (even if Earth like), would likely be many times worse than a worst case scenario Earth.
You cannot change the way the world works, but you can change the way your mind thinks. You can make where you are the way things should be. Find a small place or small group of people with whom you can make the best it can. Focus on your family, your friends, and your neighbors and keep on improving the kind of person you are to them.
Pray for God's will to be done, rather than your own. Be creative in finding things you can help fix or improve, that is within your direct power. Be happy about even minor victories. Don't expect to see the results of your prayers - faith means believing when you cannot see. Don't expect politics, charities, business or government to help you solve your problems.
Get a basic understanding of the spiritual world and orient your thinking from material things to spiritual things. Believe that the spiritual world is more important, than the physical world. We think that having more money or people makes more difference, but intention and choices are the most powerful of all. God is really in control and the government and businesses really are not. The enemy to your happiness is you, not your rivals.
Just one person praying can and will literally change the world by God's direct intervention. God wants to and does intervene all the time, but we are unwilling to believe that, because we want to be in control. But God will only intervene, when we ask Him to, as He wants us to have the freedom to be able to control our own world.
Forget everything you see and hear. This is not real. What you feel and what you believe are many times more real. Positive things are happening now and will in the future. You will never hear about them on the news. The next generations are very interested in spiritual things and do not have any negative preconceptions or believe any sort of heretical theology. They are clean slates and are prime for huge changes.
There are more Christians in the world now, then ever before. Christianity is not dependent on America or Europe, in any way. Missionaries are now being sent from Africa to Europe. What you see now in America and Europe is not typical of the rest of the world or the rest of history.
America only makes up 5% of the world's population. Christians out number Muslims 2 to 1 in the world and are in the fastest growing countries on earth. Even China has a huge number of Christians, out in the open, despite living under complete dictatorship and an anti-religion government.
Most Christians in the world are poor and are being persecuted by rich Muslims in parts of the world our media rarely reports on. There are still Christians in the Middle East who are still there from New Testament times and they are not Arabs or Jewish. America and Europe are evolving into third world nation status, but the rest of the world is getting worse than that. Europe may be overrun by Islam, but America is not at risk of that, by any stretch of the imagination. Despite what you hear in the media, Mexico is merging its culture with America; we are not becoming Muslim.
Just understand that big changes does not mean anything you will be directly aware of and does not mean you will be able to witness huge changes in numbers of people or money or politics. The things that really matter are that you try your best and refuse to give up. You cannot let what you cannot do be a measure of what you should do. The world will turn more and more against God, but that does not mean that God is intervening less.
We are conditioned to believe, that only what we see is real and if we do not have factual evidence, that we can measure that something isn't happening. Do not give up that easily. You either believe in Christ or you do not. You have to choose to believe in God and you have to choose to believe His methods work. No powerful person is ever going to give God credit for anything. So, yes we can live happy lives as the world burns. But there will also be good surprises coming too.
Defy your greatest adversary - your own mind. Choose to be happy, as you choose to follow God. Find the good things in life and cherish every little victory. And choose to believe that God will answer prayers and His will will be done. Worse case scenario, we will only live a little longer and we know there will be no suffering after we die, if we choose to take God's offer of grace.