Insanity: doing the same thing over and over again and expecting different results.

In life, we'll definetely encounter many ups and downs, and some might have seriously screwed us up. However, does it help if we are being constantly reminded of having a positive mindset? I'm clueless, and probably this explains why I'm a type of girl worrying 'bout most of the things. This is my character, my personality sometimes I had a strong feeling that I like this. Not because I cling onto an event, repeatedly reminding myself that I didn't perform well, but I thinks that these give me faith. Probably, I'd always feel the heavy burden on myself which is quite stress out. It doesn't matter, the way I'm, I can't change the fact.