Look at the birds of the air: they neither sow nor reap nor gather into barns, and yet your heavenly Father feeds them. Are you not of more value than they?
Matthew 6:26 esv
Would the Lord really let you down now? Seriously take a moment to think about that. Look back on your life and reflect on all that Christ has done for you. Even when you were dead wrong He still gave you another chance. When you deserved failure He led you to success. When you should have died Jesus gave you life. Why would God stop taking care of you now?
Has God ever let you down? Not one time! The future is uncertain to us, but He knows all about it. He knows about your problems. He has allowed them to come your way. Not to bring you down, but as a means to build you up. Forget about what you don’t know and just focus on what is certain; God knows. Outside of that what else do you really need to know?