as long as the altcoin you choose is altcoin which is in the top marketcap position, I don't need to worry anymore, but I also suggest that you also choose ethereum as one of your investments.
investing in top altcoin is highly recommended because considering the bad market investing with coins that are difficult to develop is very risky, it's better to invest in top altcoin like eth, bnb, or eos. on the other hand to minimize losses as well.