Okay - I agree that you are at the lowest point in your life, BUT you can pull yourself out of it...
IMO - Do not call your H and tell him anything. If he truly wants the D - let him do the work, don't make it easy for him... Do not call him, pretend as if you are totally indifferent... You can do it...
You CAN find a job, but you are so damn down on yourself, that you may be portraying that to potential employers, be confident in yourself and your skills and get the damn job...
I am not sure if you have a separation agreement, but you need one. You need to speak to a lawyer to make sure that you and your babies are taken care of. I did it, and now if H falls behind, I can run his ass into court...
You have got to stop feeling so damn sorry for yourself. Your H is not going to hep you right now, your daughters are too young to help you, so get off your ass and help yourself... You can do this. Don't worry about yucky H...Worry about you and your girls and YOU give them the life they and you deserve...
One more day - Honey - you have a ton, believe me, but just stop crying and be happy. Make yourself be happy. DOn't you think this negative attitude of yours is affecting your girls???
Screw your H, screw your negative attitude, and be healthy and happy for the girls... Stop feeling sorry for yourself and take control of YOUR PART of the situation - only you can do that - not anyone else...