First off, it's very brave of you to come out and express your feelings. I know how hard it can be when you're trying so hard to stay motivated. I can only imagine what you're going through right now and you have my sincerest apologies. I know things are difficult and I can't even begin to fathom how stressed you are with your children. I can only hope that you'll either be able to keep in touch with your therapist or if you could somehow use this website as a healthy outlet to express your feelings.
I don't really have advice on how you can handle the matter but I can say that you are strong and being able not only to own up to your feelings but actively looking for ways to fix them is something not very many people can do. I know you've probably have heard this once or twice but please keep strong. You have come this far and there is certainly no way you're going to let life get you down when you have your beautiful children there with you. I believe in you.