You change for two reasons. Either you learn enough that you want to, or you've been hurt enough that you have to. (I'm hurt enough to need to change. But I must learn enough of myself to decide what and how to change.
One day you'll realise that there is only one person who can make your life better, only one person who can make you feel like the whole world is not against and there's only person who can make you say ''the cup is half full'' . and that person is YOU.