Everyone makes mistakes, you are not an axeption. Bitcoin will never back to 20k. I think, you must find another, maybe, more safer way to make money. Yeah, Bitcoin is still living, it was pumping, but now its stable.
How do you know that Bitcoin will never go back to 20k ? Me and my friends do believe that Bitcoin and Ethereum will rise again in the future. Because it is happening all the time. Coins go sometimes very low, and sometimes very high.