At first it was difficult to sell on a constant growth (greed). When the price dropped significantly, it was difficult to sell in anticipation of a return of prices. Thus, many stay on the market. Only professionals could act correctly.
Professionals are not born, they become. A lot of time the first users of the market made a lot of profit. Until this year, they all had the time to pick the right moment and profitably sell coins. I do not believe that any of the first clients remained at a loss.
I think it's too early for you to despair. The market is cyclical. Yesterday he was all red, and today he dressed in green. Perhaps in the near future you will be able to return all your investments and even get a solid profit.
I for example bought several species of altcoyins from the top 100 at the time when the market was still green. Now they cost much less. But I do not despair and will wait for the moment when I can make a profit.
In such case you need to wait a lot when market will restore.
I'd rather wait and get my money back and earn plus. And if everyone will act pog to another it is only in the hands of large players