newbie often run into losses when investing in new projects. ,i once bought new coins but i can't resell them. i think i have been cheated

what can you suggest to us and how to find out if the project is a scam? Is it true that new Coins can give big profits as people say on youtube channel?
i can say that you can't directly emphasis directly to newbies alone, because it's applicable to the everyone who adventure into new project without knowing the positive and negative impact of the project. Another i want you to understand is that lose can occur anytime and it normally when your speculation and prediction goes wrong.secondly it's very obvious that no body is above of adventuring into lost.