Crypto is a perfect engine for scammers because it's still unregulated and it's also the wild west when it comes to making money quick with less efforts. .
Apart from rugpulls and influencers scam that are very famous with altcoin investment there is one particular side I want you to be much aware of.
Many altcoins you are seeing right now are build on "Make the project, promise the entire world rare utilities and never really deliver anything, they will keep using words and investors will keep hoping.
They deliver small updates only to push the price higher.
They spent hours live streaming almost everyday.
They trust hype more than anything and a finished product will ruin it.
Keep a track of your altcoins regularly and once you see the slackness in the team it's safer to switch.
Some good advice here, also worth mentioning that if your coin has a CEO or was largely premined then it can be very risky. Decentralisation is very important in crypto, we have all seen first hand what can happen when one or a few people have too much control over a project.
I wish you all the very best of lucky but extensive research is required before significantly investing in altcoins.