Congratulations on your time sober. You should be worrying about you, not him.
You need to back away from him in every aspect. Financially, emotionally, physically and leave him to his own sobriety. All of them are for him to deal with, not you. He is 29 years old. Time to grow up and take control of his own life.
You are in no way responsible for him, his actions, his reactions, his money issues. They are his and they should be left for him to handle. If he does not then he will be your 39 year old, your 49 year old and your 59 year old son that still treats you badly and takes advantage. He won’t stop on his own because he is getting away with it.
Some crying, screaming and kicking his feet and everybody bows to him to keep the peace. That needs to stop.
It is for his own good as well as yours.