Do you tell your friends about your crypto earnings and trading strategy?
Sometimes it's hard to keep it to myself, but at the same time, I don't want to share my trading lifehacks.
Do you share with your friends?

Like you said, "sometimes, it hard to keep to one's self", I do share some of my crypto achievements as well as activities to my friends, but I do it very consciously making sure I don't expose my secret, and I share this things mainly as a way to motivate them to (for those are not yet in crypto) get into crypto, (and for those who are already into crypto (to keep going).
We all have our little secret, and as for me in particular, it takes great personal connection with a person for me to reveal one or more of my success secret to that person, anything outside of this, I only tell the person or persons all the great things I've achieved through cryptocurrencies, but I never tell them what exactly I did to achieve that.