I'm on my computer, essentially, every waking hour. I've been this way since I was a boy. I have two passions in life: programming and playing the drums. If I'm not drumming, I'm programming and vice versa. This is what I enjoy and thus I contribute to many OSS projects, manage an Apache project, consult to two startups and have a full time job.
I do all these things because it's what I'm driven to do. I would go crazy without it. There's no shame in not being like me. Do what you enjoy.