Where do you think you should invest your money where there are chances of high ROI? The answer to this question might be complex. But if you do not know who you are and who you want to be, then you cannot make an informed investment decision.
It's not that complex but to answer that depends on how much you are looking for the profit.
You can have ROI but the question is when it will come? you know that there's no assurance in cryptocurrencies when it will skyrocket. Like today, the market is bleeding and it's hard to say when it can recover but this is the best time to invest.