You are not worthless for you are a child of God, turn over to him your all and allow Him to guide your steps from now on, and he will turn it all around for your benefit and for His glory. Make Him your all and you'll see how He will help you make it in this world with your children.
You know when I was young with two little ones my x walked out on us, I was left without a cent, literary without any money at all, and no milk in the house for my children. A few of my neighbors gave me some milk and bread, one went to her church and they brought us three bags of grocery, a church I had never attended.
Then another neighbor took care of my children for me to look for a job. Thanks God even though I had never worked before I was able to find a job not far from where I lived, and was able to walk to it. Little by little I was able to make it without any welfare, for that is a trap which once in it it's very hard to get out of it. It's like being a slave where the government controls your life. I didn't want that for my children, and I rather have God control my life than any government or any one else. Try doing what I did and you'll never regret turning it all to God.
Lord help this woman who is all alone with her children, help her find a job, and kind people that will help her
with the child caring of her children while she is at work. May she allow you to lead her steps to a better life in Jesus Christ our Lord and Savior. Give her strength and peace from above, also supply for all their needs. Have your perfect will be done in their situation and life, also keep your guardian angels around her and her children always. In Jesus name I pray this amen.