You just said it in the beginning of this thread by mentioning some meme coins of some specific years; these coins did well then despite the crypto market citation and most investors that invested in the project made a lot of money because they took great risk and invested early in the projects.
Therefore, if you are good in altcoin investment, you will still find your way out because we are seeing projects going up daily despite the market conditions. The only thing that is important to note is the risk involved in the investment, but the higher your risk, the greater your return.