Need advice 🙃

My husband works so hard to support us, working 70+ hours a week in the oilfield. I want to give him the most magical night of his life when he gets home from work tonight. Any advice is welcome. He says he likes to dominant in the bedroom, but he's too afraid to really let loose. I like pain, any kind of pain really. And he also says he gets off on hurting me, but none of his previous partners would ever let him do the things I would. We've been together for 6 years and I just want him to be comfortable enough to really enjoy himself but he won't just let loose. I'm very submissive so it would be perfect. How can I absolutely blow his mind and make him comfortable enough to really enjoy himself?