If you could give only one piece of advice for crypto investors, what would it be?

Lately, many friends of mine have been getting started in cryptocurrency investing. They have had a good start but some have made typical rookie mistakes.

In my personal experience, the FOMO and buying the news have been my worst mistakes, leading to financial losses that I would have liked to avoid if someone had been there to give me advice.

This is normal, and I think that at least once in a lifetime has happened to all investors, but if the investors of the next generations can save themselves the pain and money of making these mistakes, so much the better.

If you had the opportunity to give just one piece of advice to any novice cryptocurrency investor, what would it be?