These are familiar advice and information for every newbie and everyone. We need to be resounding this advice everytime. But one thing is that upon all the advice that is available people still fall pray to scammers.
About to show off, there is no need to show off when you have it, it will only attract enemies to you.
Never give out your seed phrases, even to family, just put it in your will incase you die.
When you talk about to put seed phrase in the will, it sounds simple but very difficult to implement. How will you include the seed phrase without letting the will personnel to see the seed phrase. And anyone that has your seed phrase now has your money.