blue pill, my existing knowledge won't help me cause I'm not in a position to actually change things. 10 million dollars though... I could invest that and call it a day
You could do way more than just get Bitcoin. You could do shorts/puts on all types of market spikes/crashes and just normal investing in Apple, Google, Tesla, Amazon, etc etc. You could literally become a multi-multi billionaire.
That is, if going back to 6 years old also means that you'll at least be 18 way before or by the time the mid-90s/early 2000s rolled around.