You cannot be sure of that, you cannot be sure of anything in crypto, especially altcoins. I don't know much about these coins and it is possible to make money with one or two of them, but i would believe the chances of losing money is higher. My opinion of investing in new altcoins is to wait until the price starts to rise and do not buy too much of them, if you buy too many coins when the price is low, then your gamble might not pay off with all of them and you'd lose quite a lot of money.