Even though you may have missed out on some big gains, I think we will still see big gains in the future. I think the key is to start accumulating as much Bitcoin as you can and maybe one or two major altcoins as well. Just store up as much as you are able to buy or earn and in 10 to 20 years, you may still be wealthy. I think Bitcoin will be worth a lot more as the supply starts to dry up and there are fewer mined. People will just hold on to what they have for retirement or major purchases.