I withdraw everything from Bittrex about a year ago. They were going to suspend accounts that couldn't provide identification accordingly. The problem with that was that they were asking things like Social Security Number, which I don't have in my country. Luckily they had a period of warning before they did it.
Now I'm mostly on Kucoin. Sometimes Binance, if the pair is only available there.

Waves DEX started out great before the bear market, but it's been losing a lot of volume ever since then.