Hi,
I've been where you are. Hope you appreciate that my prayers are with you.
As for jobs that require no experience, are you good with phones? Try receptionist positions. Are you good with people and multitasking? Try waitressing. (Although the base pay is not much, tips are really good at fancier restaurants.) Tell them you are a hard worker and can learn anything, given the chance and if allowed to ask questions. They usually like a positive attitude... I know that under the circumstances, that is hard to do, but you must not feel sorry for yourself for very long... you must take care of your children now. Cry, but do whatever you can to pick yourself up by the bootstraps and draw on courage from heaven to be there for those who are counting on you.
Also, I don't know if you believe in God, but if you do, He considers you equal to a widow, and he defends widows and orphans... you can count on it! Trust Him. Stay on the offense. Do not be defensive. Stay calm. If you are religious at all, I have to say that my religion is what pulled me through the tough times. It is definitely ok to have a mind and think for yourself. Your survival depends on it!
Be there for your kids. You cannot be all things to them. Others can help. Don't change the rules. Don't be softer than usual. They need you to be consistent. You can be compassionate and loving, but don't let them get away with things they were never able to get away with before. We divorcees have a tendency to let them eat candy, etc., when before they were not allowed. And this will cause them to try to take advantage, which is not what you need right now. Use common sense. Apologize to them for participating in anything you have changed your mind about in parenting them. Clearly define how things will be different, if anything.
If it is safe, find out where your husband is and keep in touch regarding the children. If you haven't filed for divorce yet, do so in order to collect child support. The laws are basically good and there for you when you need them. Let him go, but try to remain friends. Do not put the kids in the middle of your squabbles. Do not talk poorly of him in front of them or you may find that you have enemies for children soon. If he is not a good person, they will find that out on their own soon enough.
Using logic, talk with him and try to get him to agree that the children are important to both of you and to understand that you will always have the love of your children in common. Thus, the responsibility to care for them should be shared. One option is to draw up a marital settlement agreement. Keep in mind that if he doesn't get a lawyer, you probably don't need one. If he is dangerous, however, it is adviseable.
I hope this is not too overwhelming... I know that the circumstances are already that. Draw strength from the love that comes from above. And in the face of what sometimes seems hopeless, there is always hope. Never give up on hope.
Best wishes!
J.