I cant fucking stand living in this house with her!

I just got all the paperwork to fill out to start the dissolution, she knows I want to be separated, not sure she knows that im going to move forward with divorce. I have read that I should stay in the marital home so that I dont lose the ability to be there.

She is a SAHM and runs the house in a very chaotic way, shes a borderline hoarder, she doesnt find any joy from being a SAHM, so shes always frazzled, burnt out and on edge. I work full time + in the trades and have made every penny of income that comes into our house for 6 years now. But were basically paycheck to paycheck.

We dont have a house thats big enough for me to have my own room; I would have turned my garage into a space if she didnt have it packed to the gills with art supplies, old clothes and toys that she refuses to get rid of, etc. I dont have any space to use, our bedroom is a disaster too, packed full of her clothes, more dressers than there is physical room for in there.

How do I make space for myself? I wish I could just find a studio somewhere close, but thats not financially possible...