I love your new plans, I think the roommate will help life your spirits and hopefully motivate you. I've been doing p90 and then p90x, its kins hardcore but really fun!
Sorry to hear that things haven't been turning out how you expected them too. I agree with Ashley though, I think moving into a new place could be really good for you, and I hope that it is.
hope it helps moving into a new place with a roommate. i only once lived alone sans roommate or husband and it was soooo depressing. i couldn't do it. getting exercise will help with the sleeping for sure. i started working out recently and now i can finally sleep at night.