I'll quit skating when I no longer need stress relief, a way to stay healthy, and a creative outlet. I'm 28 and don't see that happening in 2 years. In fact, as I get older, I see more of a reason to work my muscles out and burn fat. You should probably try to find a more serious or fulfilling job if that is bringing you down, but there's nothing that says you can't do both. It should also be pointed out that when I got a job that put some stress in my life and made it so I couldn't skate for a lot of my time, that time I do get to go out skating is just that much more awesome and has made skating cool again. When you put yourself out there and make skating your only thing, skateboarding almost becomes something you have to do, when you have other things that define you, skateboarding becomes an amazing thing you get to do.