What if I get scammed with MetaMask?

I'm really worried about the safety of my digital assets. What should I do if I ever get scammed using MetaMask? Could you explain in detail what steps I should take to protect myself from fraud? Should I keep a separate backup of my private keys? Is there a way to report such incidents to authorities? And most importantly, how can I prevent myself from falling into such traps in the future? I'd really appreciate your advice on this matter.