I don't smoke or drink but I am a gamer so I spend so much for games but I think I couldn't do what you are had done.
If I quit on games I think it would be boring for me there isn't anything to do because of the lockdown or due to the virus.
A really good choice indeed, and amazing to think that you'd be able to quit on your smoking habit and investing in bitcoin at the same time. Your family will be glad too whith your changes. In fact for me it doesn't if you buy bitcoin even it is pump or dump because if it is the best thing for you to save your money that can be wasted in cigarette instead. Here you would feel easy that your money was in a good investment