Yes, altcoins can provide huge returns to investors. and very many investors have benefited greatly from altcoins. and if you want to invest in altcoins, then in my opinion now is the right time to buy altcoins that have the potential to grow in the future. and you can find information about altcoins through coinmarketcap. because there you will find many altcoins that have the potential to increase in the future. look for the top altcoins.
You have to assess altcoins from all sides because altcoins also have the highest loss impact, recently many losses from FTX investments and previously high losses from Luna coins and many other negative impacts from altcoin investments. So investing in altcoins also has the potential to be profitable but you have to understand investment patterns based on analysis and technical because some altcoins are only feasible for short term profits.
Yes, we have to be even more selective in determining which altcoin is appropriate for us to invest in, because if we choose the wrong one, we will not get a profit but a loss. Here the OP didn't specify which altcoin he meant, so I'm afraid he chose the wrong altcoin. There are many choices here and not all of those choices make us profitable. Honestly, for me personally now it's better to allocate my money into bitcoins for several reasons.