What you tell yourself has more power to affect your future then the things that are happening to you everyday.
I love the movie The Martian because the main character Mark Watney had every chance to say that’s it I’m done, I can’t take another setback. He doesn’t worry about everything he has to overcome but instead he only focuses on what’s next.
You don’t have to focus on everything, just what’s next, what do you have to do right now to make the next step in life. You can’t walk a mile unless you walk the first 3 feet.