My sister told me that bitcoin was money laundering.What should i do?

I recently ordered a raspberry pi 3 b+ to make a bitcoin full node and when i told my sister she said that i was over opsessed and brainwashed.She said that i was too addicted and that i look like a junkie while analyzing charts.Im only 14,,but i strongly believe that bitcoin is the future of money and i want to be a part of it,not for the money but for the technology.I invested like $200 and now i have about $50 of profit so now i currently have $250.She told me that it was only worth investing in it 10 years ago and that its too late now and she said that soon all crypto will crash and fail.

EDIT:Omg i didnt think i would get so much support instantly.Thank you guys!!!