In a way, you're a victim of your own success. A full-time job, house, family (w/baby) and a popular web comic.
It's tough to juggle all these things, although I've certainly done it myself, but it's HARDEST with a baby. I know it seems tough, but it definitely gets a bit easier once they can hold there own bottle. XD
I think you just have to do what you can without getting burnt out.
Good luck and if you need to vent, you know where to PM me. XD
A full page like you do usually takes me from about 6-8 hours, depending on the level of detail I need to put into the backgrounds. I usually tend to be on the cartoony side of things because I really don't want to loose the momentum of the story. If I spend more that 2 days on a page (16 hours) I start to really get bogged down by the workload.
I used to work full time in the summer at crappy retail jobs, so I could have money for when it was time for school and I could go part-time. I guess I felt that as long as the jobs were temporary I could get through it, but retail will take advantage anyway they can. It's tough to find a entry level job where you can make good money and be treated well. Sometimes it pays to learn to wait tables early on because you can make decent money for a part-time shift and you can go anywhere and work.
I wish I could make fan art all day, since I love so many comics, but every morning I get up and if I don't have an assignment and my web comic is caught up (doesn't happen all that often) then I grab some art board and see what I can draw. Usually after reading through my favs something will grab me and get me drawing. I especially like coming up with something that I can blend my characters in with the original comic and make some sort of gag with it.
I've added all the new people to my subscriptions and visited everyone's page, but I've noticed that we've got 32 members and I've got 32 subscriptions in my belfry account. My comic however, only has 21 people subscribed. That means that nearly a third of the people participating in this project aren't actually doing there part. I'm starting to realize why these types of community projects don't work.
I've been wondering how you've been doing. Sorry to hear about the depression. It sidelines more cartoonists that probably anything else. The only think that really seems to help me is a decent amount of exercise each day.