Leaving my husband

Single moms that chose to leave their spouse. How did you do it? When did you say enough is enough? How did you know you were strong enough to do it on your own? I have not been happy in my marriage for a while now but I’m so scared to face reality by myself. How am I going to afford the rent and bills and childcare with the minimum wage job that I have? Sometimes I feel like it’s just easier to stay even though I’m not happy. Would I be selfish for spitting up my family because of my happiness? We’ve talked about it a few times and then we put a bandaid on it to temporarily fix things but nothing is being fixed. The love is not there anymore. My husband said he would never be with anybody else again if I left because it would destroy him. But honestly, I don’t feel like he loves me anymore. He has told me multiple times that I would have nothing without him and I will fail if I leave him. Who says that to somebody they love? If he really loved me, he would want me to succeed either way because I would be taking care of our kid! I think he is just scared to get out there and date because we’ve been together since we were 18. I need help. I really don’t know what to do 😔