It is undeniable that it can take a long time to get out from under water when a bubble pops. We saw that in housing...it took almost a decade for people to get out from under it.

I am a long term holder of btc and other altcoins. That said, I dont think you have a two year wait no matter what the pullback. Crypto is still an exploding arena and will continue to draw in boatloads of money over the next few years.