Eth has increased more than 20 times during this year, litecoin 33.
Monero more than 40, and ripple more than 60.
Do you really think that if you invest in one of those you are going to be millionaire in sometime? You already missed the train
Yes, missed the train. Wait for another train mate to go to place you wish.
Become millionaire is not easy at all. But just think if those can repeat its increase value this year in next year. It is hard i know but nothing impossible.