So.. what's next?  Do you keep pestering your parents to give you more funds for your Bitcoin investment?  Your goal of buying BTC is good but I find it disappointing if a person pushes other people to invest for them.  It would be fine if your family is rich and has lots of extra money to put up with your selfish goal  but if they are just meeting the family needs, it would be a hard task for your parents since they have to tweak your family budget in order to meet your want to invest in BTC.

Anyway, be glad that you have a supportive family.  I hope you develop a diamond hand and will not panic to sell your holdings once the price of Bitcoin crashes.  Kudos to your supportive family.