Yup, I've been there - still am to some point. For me, though, I have always defined myself by my work and what I do, so to have to pass on promotions bc of the kids is the battle I struggle with. When I'm not working, I'm with the kids. That's it - with DH's inconsistent schedule, 830p would be about the only time I could focus on me, but I'm often too tired!
I think you should try to work on your concern of strangers watching your kids. Even if it's for 30 minutes to grab a Stbx and grocery shop in peace - it does wonders for me! Get referrals from friends of good sitters. Start off with them coming to the house while you're there. Go sort bills in another room or sit outside with a coffee - work your way up!
Also, make sure your Dr. Knows you're feeling this way. You're tired (understandable!) and your hormones are out of whack with just having your wee baby girl.
I love the idea of an online class. And you mention writing. Find a subject you want to write about and do it! If it's community-related, submit it to a local publication. Or start a blog - no expectations, but just to get your thoughts out!
Good luck - know you're not alone!!! 4951