Just yesterday, I was talking to a friend who was going through a crisis. His instinctive reaction to solving it was to stop giving a shit, closely followed by negative thoughts about how everyone was going to do the exact same thing to him. My advice was simple, in fact, I bet you would have suggested the same thing if you were there. I told him that you can't stereotype people. You can't stop having faith just because something went wrong once. And you most definitely can't fight a (good) feeling because you are afraid it's going to end a particular way. As much as you avoid seeing it, everyone is not out to get you. Past experiences and things that you have never recovered from? They hang around, lurking and ready to resurface all the time. Most often, they come back when you are most vulnerable. And almost everytime, they achieve their desired purpose. I have learnt that the only way to move past them is to realize that that chapter in your life is over. And with its completion, it takes with it all those little moments, all that sadness and all those feelings too. I guess what I'm trying to say is that what happens today most certainly does not depend on yesterday. Every person brings something new to your life. And it is only fair that you give them a chance as opposed to regarding them as someone you were once associated to.
Maybe all we need to do is have a little bit of faith.