This post has been around for a decade, but in a way it's evergreen. It's certainly highly applicable to btc.
It's easy to be mad at yourself, as many of us are, for not jumping at the opportunity when we first heard about btc when it was in the hundreds, or even lower. But your life will always be full of such disappointments, in btc and in everything. Jesus, it hurts to think of them all.
It's hard to see the frontiers of things, but the world is full of them, and has been since at least the industrial revolution. Just sticking w/ btc, there are so many ways to be at the edge of something whose velocity is nearly unimaginable, if you scope your attention properly! It's fun to think of some of the opportunities. But honestly, it will matter more to your life to consider this more broadly than just in regard to btc.
So no, you're not too late. Not even close.