Also, pay your taxes if you are converting to fiat. Don't keep holding much into 2021 as it will start falling again, obviously. I'd strongly consider diversifying as you sell.
you are way too optimistic i see. the higher the price will be, the weaker the order book will get. early adopters will smash through all buy walls instantly. right now a buy wall of 2000 btc is worth $900,000. at the time bitcoin is worth $10,000 per coin, the $900,000 buy wall will translate into 90 btc. early adopters with thousands of coins will have a fun time selling through everything.