I just want to enjoy life

Everyday (most of the days) I tell myself it's just a bad day and tomorrow might be better.
Because I go through so many bad days before that I always appreciate all the little time that I felt happy and will always capture the memories down or something but its like I spend more bad days than happy days while I see other people in my life being happy almost every day.
I question myself if there is something wrong with me (no, definitely something IS wrong with me), and hated myself so much, thinking if the world is ever fair.
I am starting to hate people, (excluding those people who made my life less miserable).
I can't work well with people and oh yay, my course NEED to work well with people cause its a group team in the working industry and never a single person working and everyone has to like you. -.-
wow man. Who would ever like such a unpredictable girl.