The one that has been bothering me, personally, the most is the "it's was meant to happened, this is for the best" belief 

It's a block denying you to advance, a belief that defends itself because it's so comfortable believing in that you did not do a bad thing, in that every action you do is justifiable and for good so you don't need to take responsibility and the worst, it seems like a "mature" thing to believe in