First way to avoid getting scammed is to be Skeptical about everything, and unsolicited private messages or DMs should be treated with Skepticism hence if otherwise any dreams sold to you by anyone should not be bought, don't hesitate to leave such conversations that have too much of promise of returns to you.
Everyone must limit themselves from interacting with unfamiliar people, especially those who intend to offer help or certain benefits to us. We are in an environment where scammers roam, and we can follow anything to gather a lot of information. However, we must wisely limit our interactions with unknown individuals.
This is also quite vulnerable for those who have businesses to offer services. Choosing clients will be very important.