Wash sale rules don't apply to crypto (the IRS considers it property rather than a security).

Sorry you got in toward the top of an overheated market. This is entirely reminiscent of bitcoin's rise to $1,000 in late 2013 (followed by a rapid descent to ~$150). The difference now is that the market is far more established, useful, and widespread.

Give it some time. So long as you're in some quality projects, I think you'll be pleased with your holdings in a year or two.