for a high level of risk, I actually think this is one of the steps that must be taken when on this path because it is not only in crypto, actually everything has risks.
and I suggest that you don't think too much about bitcoin is a scam or not because this will indeed be a boomerang for yourself.
and when talking about your key in bitcoin it is a safe thing as long as you don't tell anyone and for sure you have to do this so you avoid losing your money due to a scam or hack.