When people you have let down in the past don’t think you can make it.
Prove them wrong for you 
I have stopped worrying about people who I may have let down and given more thought about forgiving myself and living for me. Yes it sounds very selfish...and it is. We tend to be so concerned about what others think about us that we lose concern for ourselves. Be selfish and take care of yourself. People don’t think about you as much as you think they do. They all have their own lives and facades to live up to in their minds.
A little bit funny but unfortunately there's no other way to be this realistic. Well said Jason👏
My sponsor says this all the time, “you are sitting there worrying about what someone thinks of you and they aren’t even thinking about you. They could care less about you. They are too busy thinking about themselves.” lol
They probably care about you and you should care for them but don’t let their lives or thoughts consume you.
Honestly, it's none of your business what someone else thinks about you. Prove to yourself you can do it.