I feel 2017 gains was a once in a lifetime opportunity and we won't see anything like it again.

January 2017
https://i.imgur.com/9iXza9E.png

Many of the top 100 coins with a considerably small investment could have made you a millionaire today, and congrats to those who are.

$10000 in ETH at the time and you would never need to work again.

I just can't see these gains happening again, but anything can happen