It depends what you have going on really.
When I was 17 I had my first proper relationship, and gaming went straight out the window. Here's a question to ask? Is that failed relationship a better spend of my time than playing games would have been?
Same thing I can apply to each of the relationships I've been in since, were they really such a good thing to be doing?
I think what you're going through is a bit of self-realisation. I thought I wanted to get married, have kids and do the same grind of a job; day in day out by now. I do the latter of the three, but realised that the former aren't really my cup of tea.
I broke out of what people were telling me the proper thing to do with your life is, and started thinking for myself.
For example, in two weeks I'm cycling across France from Le Havre, across the Pyrenees and into Spain. All a precursor for me cycling round the world next year. If I listened to the majority I'd be looking forward to this seat in the office for the next 40 years.
You answer only to yourself is what I'm trying to get at. If YOU feel you're wasting your time, get off your ass and do something about it. If you're enjoying yourself (which is all we can really ask for in our time) then to hell what anyone else thinks.