If your job stinks that bad, you think you can make as much or more playing poker, and your bankroll can withstand some variance, I say why not. It doesn't sound like it would be that tough to get another job paying similar even if you didn't make it playing poker for a living. I think it would be a different story if you had a great paying/difficult to get job and lots of responsibilities, but if you are ever going to do it, I would think now would be the time.

Best of luck.