Don't despair OP there's still plenty of upside for Bitcoin, just formulate a strategy and stick to it and the gains will follow. I too regret not getting involved earlier (as I'm sure many here do) and also regret not investing more aggressively when I did eventually discover this Godsend to humanity. Even many early advocates liquidated their holdings long before BTC reached it's highest highs; hat off to those fortunate few who have been hodling since the beginning, truly they must have balls of steel.

Anyway now that you realize how special this gift is please continue to support it in whichever way you can; it is incumbent upon all of us to do our part to spread the word and strengthen the network. The potential benefits of doing so for society are truly profound and you'll more than likely profit personally in the process as well

Carry on OP, best of luck