Start researching market cap and how much it would have to be to see gains on your coins.
Look at the circulating supply and total supply of coins.
When bitcoin was closing in on $20k, the market cap was less than it was in January 5th or 6th when all the altcoins started spiking. Think of it like a tsunami wave. All this pent up money flooded the altcoin market, then backed out to the top coins, and then left the market altogether.
So, if you are in it for the long term and really believe in it. Put them in a wallet and forget about them and come back in a few years. Maybe buy in a new position much lower.
Consider it a very expensive lesson learned. I've had a few too.
Too maximize gains in this market you need to look at the bitcoin dominance cycle, it's even more important than what coin you buy. People ask me how I continue to increase my holdings and when I tell them they just don't listen lol. Its amazing what you learn when your in this market for a few years.