If you have the attitude that your going to fail so why should you even try, then you have already failed. If you feel your efforts have no positive impact and believe you should just give up on your hopes and dreams, then your concerns should be focused on how you became this person who won't even give yourself a chance. When did you let the negativity in the world manipulate your own views. You should not let other peoples negativity change your intentions of trying to improve yours or someone elses life. All this will do is bring you down to a level where you have changed your beliefs just to justify giving up on the idea of the possibilities of a better life. Anything worth trying for has to be believed in first.