I just want to leave but I’m stuck here 😭

I’m in an abusive and unhappy marriage and I have had enough! Things got really bad last night and my husband hit me again! I just want to leave but I am all alone in this country. I have no friends either because my husband controlled me so much that he made sure that I didn’t have any friends. I just want to leave this house until I manage to find a place for my kids and myself but I have nowhere to go. I went to an hotel last night but I got turned away because they said due to the current lockdown, they are not able to provide a room for my kids and I... they explained that they are only open to people who needs hotel due to work or education... so here I am, back to this unhappy place for me. I don’t want to go to the police either, at least not yet because my children are still very young and I don’t want any social services involvement. I am more than capable of looking after my kids on my own, I just want to peacefully leave this marriage... I don’t even want anything from him. Now I don’t know what to do. I live in London(UK).