Of cource it's always hard to fit in but like others 発言しました be yourself. If people don't like あなた than find others! My モットー is 'It's impossible until you've got someone to help you' and that also means that あなた have to be with people who are willing to help, not just for hanging out. And if あなた don't hang out with your フレンズ than either you're not up for things enough または they're not your kind of people.
I'll give あなた the ディズニー answer and say: DON'T FIT IN, STAND OUT! Nah, I don't believe in fitting in. I believe in finding people that share common interests with you. Having フレンズ that あなた can just be total dorks with and act crazy together is the real way to "fit in", mostly because that's when you're happiest.
As for why あなた don't hang out with your friends, um idk? If あなた want to hang out with them throw a party または text one and see if they wanna go to the 映画 または do something.
