In 35 years all cryptocurrency wil be 100x: bitcoin, ehterium, ripple, maybe bitshare and etc.
What you need to do to become a millionaire? Take 10 000$ buy 5-10 cryptocurrency and wait 3-5 years. Profit!
BTW etherium is have very much potential to go 10x again. Just look how much new coins doing on etherium.
Im sorry, but there wont be any cryptocurrencies in 35 years. Use the time and make profit. I guess we wont see any cryptocurrency in 7-8 years from now.