In short, remain a lowkey person.
Cant agree more. There are nobody in this world who will be happy with your success rather people felt jealous because of others success. Its best not to share what you have achieved.
You don't have to tell every story that's happening in your life including the successes and even your failures. People will be happy if you tell your failures and they won't be if you tell your successes. In the crypto market, the failures are even more chance to show than successes because it's going to require everybody a lot of time and patience to succeed. That's why it's also understandable when someone is happily sharing his journey. But as you voice out, you don't know who's really happy with your experience and who's not.