M.C.
I hear you. Blessings to you in every possible way. Here are a few suggestions that seemed to work for me.
Cut out everything that drains your time except for your job and your kids. Start saying "no" to everything except if it involves your children.
I agree with the other lady and make sure you are eating healthy and try to get some exercise.
I am a teacher and I was talking to one of the parents of my top student and he said that they don't watch tv during the week....that is for studying, reading and extra curriculars.
Not sure how old your children are...volunteer WITH them. Let them see you caring for others.
Read the bible as God is your strength. He will give you strength. Looks like he already is.
Blessings to you. I raised 3 children this way. You can do it!