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 don't think that is a good idea to literally put all your money in Bitcoin. Because it is never a good idea to put all your money on something.
But lets say we do this and cash our money out in 10 years. We would be swimming money because the price is growing very fast.