Wondering about how to be happy? odd question...?

Well, im 22 years old and i feel like im totally unhappy. I only do things out of boredom or because ive always done them and i cant seem to actually be happy. I also freak out over everything and cant just let vanity go. I always worry about how i look and i cant just be normal and i cant just be happy. I want to do things but i either dont have the money or i just cant actually get myself up to do it. I want a total live change but i dont know how to do it or when im going to do it. I dont even know what i enjoy, i have no idea what makes me happy. And i dont know how to not freak out and judge people over every little thing. I just cant seem to know what i want to do to make me happy whether its a career or a hobbie or anything. I feel dead i feel like i just need to do something totally different but i dont know what. I was going to join the military but with what small a family i have my family talked me out of it they didnt want me to die. I dont know what i like, i dont know how to fix me. Can somebody give me some ideas or something i can do to not stress and go crazy over little things like video games when i lose or girls when i cant get them. I know i seem lke a loser but i never used to be..I just dont know who i am anymore.