Where am I? Where I should be?

Everybody in the hostel is out there enjoying the last of the day college fest and this is me inside my cell of hostel. When looked from a bird's-view I found myself in doubt. Have I lost my ability to take pleasure in such normal situations? When she asked me "What makes you happy? Drinking?" I was speechless though never drank more than thrice in my lifetime. The question made me dive more deeper into the layers of my self; resulted in nothing else than a doubt on ability to accumulate any feel good moments except passing exams or solving some puzzles. Though not performing exceptionally. This is me turned 21 today....