1. Avoid altcoins that are simply riding on a hype or whatever is trendy. They're mostly scams. And just like hypes and trends, they won't last long.
2. News channels and publications don't mean a thing. Besides the fact that personalities there don't understand what they're talking about, they lack research most of the time. Speaking on TV or writing on a newspaper doesn't mean knowledge.
3. When it comes to investment, avoid being emotional. Be objective!
No problem if you know how to ride along and not getting caught in the trap, there are few scam projects that invested money on and still able to make some money and get off the project before they collapsed, there was one doge coin in 2021 that rose from 200k market cap to 20million market cap, I made a lot before it dumped and later died.