I read that it is a big problem to live together.you are neat person. If with the friends who do not help work. May get be at not easy. So, I think you should will be alone or Find new roommate. How solution my problem is
วิธีแรก คือ คุยกันและบอกให้ช่วยกันทำความสะอาด แบ่งกันว่าทำความสะอาดส่วนไหนบ้าง
the first way is to talk and told to clean up. Divide the cleaning part?