I can totally time warp when I get into any of my artistic endeavors. I can do that playing a good video game as well. I have to set priorities ahead of time. My wife is also good sometimes in that she might walk by and mention the time if she sees me getting engrossed.

Sign up for the challenges because they bring everything together, time crunch/deadline, extra eyes on your progress which can sometimes be exactly what you need when stuck on something, and you can give yourself permission to call it done even if you know you could spend another 4 weeks on it.

Hey, at least you aren't alone