remember that, it's your life. You're the one living it, not anyone else. You've control over your life. So, why would you want to do something that makes you unhappy? :)

open your eyes! Many things that can make you happy. You've Allah who can take care of you anytime. You've family and friends who can makes your day. And most importantly, you've 'yourself' that determines what direction your life and make you happy somehow whenever it.

Keep smiling. If you don't feel the happiness in the world, maybe you'll feel the happiness in hereafter. Provided you always keep doing the best and closer to Allah. Trust me, you'll be happy :)