Investing in all sorts of scams and gambling can not be a good way to earn money. In such cases, you can immediately say goodbye to the money.
Who would invest in scams if we know it beforehand, that is why investing is very risky because we are not in control of our money but we have to do it, take risk in order to grow our money. If you choose to gamble then your chances of success if definitely lower than investing, that's the real story here.
Gambling and investment are equally at risk. Both of these have some similarities. Gambling and investment have the same goal, namely to grow money. And in those two areas, we have to take risks. But In our investment is more certain to increase the profit from the gambling. Gambling has a greater risk.