How I wish I know about bitcoin way back then, I would have invested also. This decade result shows that bitcoin is waxing strong, people are still believing in it in spite of the fud news spreading around from the press.
To make it in life, you gat to take risk. Information is the key, get informed and take a step. It's better to try and fail than not trying at all
This is very easy to say in hindsight but very difficult to actually do, after a decade bitcoin seems like it is unstoppable but at the beginning when only a few enthusiasts were using it I'm pretty sure that things were not so clear, also you are making the assumption that you could have held your coins for long enough in order to see those huge profits, however a decade is a very long time and you could have lost your coins in many ways.
You could have sold your coins as soon as they gave you a small profit, your hard drive could have crashed, you could have invested in an altcoin that failed, maybe you could have lost your coins in a casino or you could have got a hacked. I could go on but I suppose you get the idea the important thing now is that you are here you are aware of the potential of bitcoin and you still have a chance to make a lot of money if you take advantage of the opportunities that present themselves.