promoting ICO projects now is not as lucky as 2017/2018, because this is caused by many projects that lead to scam plus payments unlike before, if you have a lot of capital, we better invest in trading or gambling even though the risk is too high.
I don't know about this exactly, but the point in general is quite right.
If you have a decent capital - try to minimize the risk, invest in several cryptos, try to reinvest some of your monthly profit and that basically it.
If you lack a big capital then you still should invest some of your (Even small) capital in lower risk cryptos, I'd say half of it, the other half you can gamble/invest in high risk high reward ones.
And you can consider bounty hunting instead of your job/in addition to regular job