Just to expand a bit on what I wrote before. I've worked professionally in the domestic violence field for a very long time. Even if the abuse is "worse" when he's been drinking, the alcohol doesn't CAUSE the abuse. Most alcoholics are not abusive, and most abusers are not alcoholics. Ditto with the cocaine use. Abuse is rooted in a sense of entitlement--that he has the right to control you.
In his case, that evidently includes the right to demand your money and to treat you in any way he wants, with the expectation that you will continue to permit it.
Please be careful. The time when someone leaves an abuser can be a very dangerous time--he may interpret your leaving as a direct challenge to his authority.
Please do reach out for an advocate's assistance in making your break safely. In any jurisdiction in the US (and many other places, as well) his assaulting you is sufficient to qualify for a protective order, which requires him to have no contact with you. If you or he needs to remove belongings, that can be done with a police officer standing by to ensure your safety. If he violates the order by contacting you, the police are required to make an arrest before it escalates to something dangerous.