Dogecoin only pumped because of Elon Musk's tweet. No other reasons than that.
And was dumped because of Elon Musk's tweet. This shows Dogecoin is just a pump and dump scheme coin.
From OP's post, I still prefer Cardano to be a good investment. I've known it for long and they keep up to date with their roadmap. Some of those new innovative coins are still overhyped to me so I don't plan to buy them yet until a massive correction happens. A coin that increased more than 50% in less than a month is likely to dump soon.
Definitely, I agree! FOMO-ing is a bad thing because it often leads investors to bankruptcy or bag holding worthless tokens/coins. Always look for an opportunity to buy at a discount. Cardano brings innovation to the table, so I guess it is also one of those few that will have an impact in the cryptocurrency industry when the time comes.