Glutton for abuse?

I woke up this morning looking a prayer to help cope with the pain and struggle I go thru everyday.  I try my best to do the right thing by my kids, and it always back fires on me. I am treated like shit everyday. I have people that are rude and inconsiderate to my kids and I when we're out shopping or other places. Please keep in mind my children are not the best behaved children in the world. Either one or both kids are acting up, yelling, being loud, crying, or fighting. It is quite a challenge trying to control them in public. To make matters worse, I have not mastered the art of keeping them distracted while I shop. They can't help me pick out items because they can't read the grocery list. They can't read the labels on the shelves, and have broken items in the past. Not only are my kids often obnoxious in public, while driving, and at home, but they lack my full attention as I grapple with my emotional and mental state of mind that is often caused by their abusive father. If he's not yelling at me, calling me names in public, and treating me like i am lower than the maggots that eat through decayed flesh or pooh, he's ignoring me, or pretending I do not exist. I am tired of being treated badly. Yesterday, I had a meeting with the school's principal who also is an extremely condescending bitch. I have prayed and prayed and prayed for guidance and help, but nothing changes. I have been working out for 3 weeks straight, and I'm not sure if I've lost any weight. My life is so miserable. I want to run away. But I have no place to go. I don't want to leave my kids here to suffer with their father. God I need a miracle.