What I like to do but can't do

Hello everybody,
I'm 16, I study a lot and do a lot of gym. To get the time i need to both study and go to the gym, and sometimes hang out with people, i completely sacrificed all the hours (they were a lot) I used to spend on the pc playing games. Now, it would not be an issue but it seems like I am not finding anything that really (and I mean really) takes me as something I like the way games did. Don't get me wrong, I sure am forcing myself to study and move, but I don't hate any of that and it's annoying to see how I can't get satisfacted with any of the "normal" activities. If this is really my case, do I have better off just playing the pc and losing some of that juicy time or should I just keep doing this stuff until i enjoy it more? If you have any other idea just go and tell me (I also read but it doesn't seem to get me that much)