Is it normal to sit in my room and do my hobbies alot of the time?

People in my family all noticed that I changed.
I don't go out much anymore, I don't feel comfortable being myself, so I more or less hide in my room and play games, listen to music, watch television and films frequently.
I'm having a tough time getting a job, so I do this to kill the time.
My family criticizes me, saying its a waste of time.
I'm on a college course I ABSOLUTELY HATE! (Its all reading out of a 1200 page book, about electrics :| so I don't really do it at the moment. I hate reading to learn. I prefer lectures it feels like someone explains it their personal way, and impart their knowledge into that, it beats reading special books with certain guidelines and parameters that keep it straight up complicated and don't simplify a single thing)

Games, television, films and music are not a waste of time to me. People put their hearts, ideas and soul into whatever they make, its part of themselves. Its like an art to me. Someone envisions a world, and creates it and plays it. Its interesting.

IIN?