Hello BlueberryMuffin. I am glad you joined the forum and just want to encourage you that there IS hope. It does sound as if you are in a difficult situation; it sure would be nice if you had someone to help with the kids a bit to give you a break. You seem completely exhausted.
Also, you mentioned that you are on medication for depression. It is good that you are under medical care.
I haven't experienced the responsibility of caring for small children but I *do* have a tendency to let myself become overwhelmed when facing too much and just let it all pile up around me rather than coping with it. My best friend has taught me... and sometimes has to remind me... to make myself a LIST of the things that need to be done (I use Excel) and then mark them off one at a time. Even small things. Break it down into bite size chunks rather than trying to swallow the whole thing at once. It is a good feeling when you are able to mark something off.
Same with your health... don't focus on all the exercising, eating right, etc... start with one thing like watching your diet, which very much does affect the way we feel and our mental health.
Here in the forum, please check out this thread.
http://www.3fatchicks.com/forum/weig...ek-12-4-a.html
It has been helpful to me... we check in with each other every day and share what we have eaten, how we are doing, etc. There are many other good sections here, of course, and in time you will explore and find your places you are comfortable. But this can be a starting place for you. In fact I just came online tonight late because I was wanting soooooooooooooo badly to go get something to eat, which I do NOT need. So I shared with my cyberfriends rather than blowing it and chowing down.
Hang in there... you can do this!!!