What do I do!! Help!!

What do I need to do if I’m considering leaving my significant other? I have no family or friends to go to with this. I have a 2 yr old and a 1 mth old. I’m a stay at home with unfinished degree. and have only worked in restaurants. I don’t have a job or savings for myself nothing is financially shared between us I have no way to provide for my kids or myself. My situation just seems to be always coming to if we are done or not. I’m tired and desperate. I just want the absolute best for my kids.