If you read my last post, you know I don't think there's much value to Bitcoin , primarily because there's little to nothing that gives it any real value, as well as it not really solving any issue that online platforms for transfer of traditional currency can't.
If you choose to short BTC (which you can; https://www.investopedia.com/news/short-...), I think you've made a good choice, first and foremost. However, it certainly isn't risk free. As it falls, it's likely to have buybacks that push the price up. It's also unpredictable, it rose to 20k on the basis of very little, so it could pop back up for no apparent reason as well.
Good luck. I myself choose to stay away from cryptocurrencies due to their high and nature of of unpredictable drops and pops.