If your aim is to get rich with bitcoins I think you are a little late I think you have a way better chance with altcoins instead since the prices can go sky high very rapidly unlike bitcoin, if you are a good trader bitcoin can give you good earnings but not as much as before.
It is still not that late if you are thinking that most of us are late to become rich in bitcoins, well it is still not. Because if you are going to work hard there is still the time that you can earn good amount. It depends on how determined you are to earn good amount, especially in trading, there's no time required on it, what you need is patience.
For those that work hard it is never late, but the volatility of bitcoin is not as great as it was before, no longer the price can double in a matter of hours or days, the price can move hundreds of dollars but it is not possible for the price to one day be 1200 and the next day be 2400, that is not going to happen.