The advice that currently works for me is:
1. Avoid YouTube influencers when you plan to invest in Altcoins.
Little did I know that those influencers are most times the owners of the project or they are in partnership with the project owners. Believe them at your own peril.
2. Don't encourage others to invest rather teach them about bitcoins if you know they have enough knowledge to comprehend what you are saying to them. in this way, you can avoid any blame from them because you only convey to them the necessary knowledge about cryptos.
Encourage them to invest and be ready to take the blames of failure. Teach them about bitcoin and allow them to make decision and become the hero
7. Last but not least, patience and perseverance during a bearish market are the best traits you could have, so always prepare for the bad scenarios, and don't worry, it won't last forever.
This advice is key but at the heat of it, it is often neglected.