investing in cryptoqurrency always has risks. however, what makes a person profitable is when buying at a low price and good luck when choosing a coin to invest. because investing based on speculation too, and we also do not know that what we have invested turns out to have high selling points.
Good luck works only when you have done good research and make sure that you are not making any error before doing investment. What I believe is that one has to be highly informed and clear about the development team motto of the coin. I personally suggest that analyze the movement of your coin for last 6 months and then do read speculations about the future current prices of your selected coins.