Sorry to hear that OP but i think stuff like that happened to most people that are active in the crypto space before. I did not make the same mistake as you did but i made other mistakes. For example i took part in a few private sales in 2020 and in early 2021 because i am part of a few launchpads and in May of 2021 my portfolio had significant value at least for my standards but of course i did not sell and today my portfolio has only like 2 or 3% of it's ATH value from back in 2021.
Also i sold my waves when they were at around 50$ each which was a good sell obviously but i wanted to buy them back once they are below 4$ but now yesterday Waves took a jump from 4$ to above 8$ at the moment so i already regret not buying back at 4,50$, but that is how it is.
I also don't buy waves now i just wait. If it will not fall again i have just missed that opportunity.