i feel pathetic

So much stuff is going on and im not doing anything right. I keep blaming other things, people. But I know its just me not being able to learn the fact that I cant do everything perfect and (also that i get sidetracked easily). But even though i know this "fact" i still seem to think that "its ok" I can do what im supposed to do in a few minutes. But that just makes everything worst and I never get anything done. Is it just me that feels this way?