I want a divorce..but dont want to fight for my house?

im going to be asking my husband for a divorce. i have a couple questions, where do i get the divorce paper work. we have a house that we purchased about 4 months ago . i dont want to fight for the house i just want a divorce..he always says that i make excuses when im just trying to let him know how i feel..he tells me i have never done anything since the day i was born ..and what hurts more is that i want to go to school to become an rn ..and he puts me down by saying that im all talk i wanted to do this for him to buy him nice things..he always rubs in my face what he buys me..he never wants to take me anywhere...only asks me if i want to go somewhere if one of his family members is going...im totally out of love.. i cant believe that i could actually feel numb about him ...like it dose not get me down no more..we never have sex at all. im 21 ..i cant live like this im done done done..how do i get this whole thing started ..i live in california..thanks for the help