Forget about everything else and just put everything on bitcoin. You are living with your parents, they pay everything for you, you got nothing to lose. If I was living with my parents, I would save everything and buy bitcoin monthly. If BTC doesn't keep rising you can still reach the 21 BTC holder group, then save this and retire in 10 years when the price makes you a millionaire.
Go all in on regret later. You are on a privileged position to profit from high risk high reward moves. No risk no win, and BTC is the best long term high risk bet.
I disagree. Spend your money when you are young and can enjoy it
When you get old and your body doesn't work money doesn't matter all that much if you get by.
Hell, I'd rather take a lot of my money and give it down to my kids rather than try to enjoy it while I'm in my younger years, or, well, what used to be my younger years. That's been my philosophy for a majority of my life and chances are it isn't going to change. I don't really have much of a use for the money, and I'd rather have wealth building up in my family line rather than have to deal with all the other issues flaunting money brings.
Sounds like you already have enough money. So you just want to give money to your kids instead of enjoying what it can let you do? Do you not want to travel? Experience new things?