Moving from the era of Real estate to stocks to metals to oil blocks and now digital assets we would agree those who made it big in all this investment options were those who had the patience to hold.
From the history only ponzis are profitable in short holding and all other real potential based opportunities are proven to provide big returns in long term holding hence digital assets cannot be an exception here. If you find any opportunity is profitable in long run then that must be categorized as legit and at the same time if short time profiting opportunities are providing realistic returns like 2% to 10% then that also might be legit.
If you can't develop the hold attitude then the best option is to do a physical business
If you cannot remain patience enough then you cannot be a successful investor. Investing is a simple way to enable your money to make money for you as you cannot keep earning till your end of days.