5. Do not connect your wallet directly to any site you are not sure of otherwise you could be piped. The best advise is to always make a new wallet and send few gas fee to that wallet and keep your real wallet secure and safe from alteration.
These two reasons why many newbies have been becoming victims of phishing websites. They think that it's okay to connect their wallets especially metamask to any of these websites.
Many airdrop people are connecting their wallets into the new projects adding liquidity as the reward will even be bigger. They add volume, using their own gas fees just to contribute.
But they have no idea if the project will become successful or just a decoy to attract more victims. That's why when it's come to this, I agree use new wallets.