Whenever crypto market goes into a state of depression I usually exit and forget about it for some time. I don't want the depression to influence my actions and my mood, so I don't check the price, don't sell any cryptocurrency and don't gamble with it. If you hold cryptocurrency bought earlier this year don't sell it and don't spend it because you'll get much less than you should.
I agree that bear market isn't good for gambling...
The problem will be that everytime you lose you'll tell yourself "damn I shouldn't have played around with BTC it'll be worth so much more in the future, I've lost what will maybe become thousands of $" and when you win you'll tell yourself "yeah but it's worth only that much right now..."
So either wait a bit to gamble or stop comparing crypto to fiat! If you're able to consider crypto as its own then you can gamble with it without fearing being stupid because of the bear market.