Learning sucks/taking things personal

Somethings you can't take personal. It's hard not to, trust me. I take things personal when they aren't about me but my friends. I'm learning to let things go and move past them. That's hard because part of my brain that is like "if they do it now they'll do it again" but you have to let it go to be able to trust them again. If they burn you personally that's different but you can't hold things against regardless of who it was toward. 

Learning sucks but I need it. If I didn't learn I wouldn't grow and it I don't grow what kind of person will I become?