You don't want to hold altcoins and never look bad, I am certain that you will lose more than you've invested and only luck will make you get profits, the best thing to do is make sure altcoins have go way down before buying, when there is fear in the market and crypto future starts to look uncertainty that's the best time to buy and hold.
Honestly, if you invested in even Bitcoin and never look back trust me crypto is never meant for you.
Because it is never a good idea to invest in cryptocurrency (and that includes BTC) and never look back and apart from the dump in the price of the crypto, consensus can change anytime which may impact the price of the coin you invested in.
I have seen a lot of threads created by newbies on this forum who are old investors but never look back and they all end up blaming themselves. You can do adequate research about the altcoin you wanted to invest in to be sure of its longevity and store it in a cold wallet but always keep yourself inform about the recent update.
You should be more specific on what coin you are referring to. Some coin dies off even after 2 months and some after a year we still have project that are strictly on a pump and dump use.
You can never choose to invest in shitcoin and expect it to last long in the market.
There are also coins that are meant for long term profit. In crypto investing based on what you heard is never a good investment method learn to do your own research on every coin you choose to invest in.
Every crypto that has huge community support is meant for a long time but choosing your asset or crypto gem is not based on what you heard because it's actually based on your personal knowledge about knowing the best coin to invest in.
For the record, most influencers these days only manipulate the market and advertise the project that they invested in.