I'm 45 and I think you should listen to your mom.

You should get every experiences you can get and you should explore the world (outside) to become an expert (maybe in game dev).
You should have social contects (friends/girlfriends) to get an idea how other think and feel. Every friend is more worth than the best script/game.

So listen to your mom and turn off your computer for some cool hours outside!
You will not regret - I promise.

I'm out for some fun with my friends...