I need advice here. Basically I have a friend I've known

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I need advice here. Basically I have a friend I've known since I was really young that I no longer want to be friends with. I used to enjoy hanging out with him as a kid but as we have both grown up we have become very different.

He has ended up as someone who enjoys drinking, doing drugs, socialising, gambling, smoking, sexual intercourse and partying and stuff like that. I have become less and less social throughout life and enjoy simply relaxing at home and do not enjoy any of the things he does at all. Another issue is that he will always try and get money off me to support his habits or the things he enjoys. He never takes no for an answer and will try and emotionally blackmail you or get angry if I don't loosen my grip on my cash. I personally dislike conflict and shit so I usually lose a decent bit of money every time we hang out. When we hang out its almost always that he just says "lets go do x" and in the same way with the money his mind is set on it and he wont compromise so I have to end up in places I hate doing things I don't want to.

The reason I haven't ended this friendship yet is simply because I don't know how I can without causing a massive shitshow. This friend has had a very shit life so I understand why he ended up as he did and try my best to help but its ingrained in his personality now. He has really bad depression and cant control his emotion and always goes on about how I am the only person in his life that has never betrayed him and always been there for him. I feel if I just straight up told him "we aren't friends anymore" he would kill himself or be mentally destroyed. Also he knows my family and where I live etc and so I cant just ghost him either.