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.
Not all young people should go in bitcoin because they need to focus more on their studies. They need to know more knowledge for us to survive in their life. Bitcoin can only a part of their life.
At the present moment, it is best to get as many BTC as possible and for becoming rich, the only way to get rich is by holding on bitcoin for some years. This is how Eric got rich.
We all agree on one point that bitcoin can really increase in its value in the future and its final value will be somewhere around 50k dollars at least. Though we might not live that long but there is no need to spend it until a desperate need of money.