Relationship

Hi lovelies

I have question ? I’ve been married 18 years got three beautiful kids but I’ve never loved him because can’t find spark in him. We have 14 years age difference as well now I’m 36 and he is 50 after my 30 I’ve realised I don’t love him he always treated me as a child but since 1 year we have no relationship no sex as well and I wanna leave him but he doesn’t want to leave me.

We had physical fights as well.

Need advice please

I have no friends and family as well feel lonely

That would be great help to advise