If you buy Bitcoin now then yes you are late for a lot of profit but Bitcoin is not at its end. It just started its journey and Bitcoin has a lot of potentials to really, even more, hights something like 50x more or maybe more than that. In theory, it is seen that Bitcoin price will rise when the coins will be mined from the network blocks.
not yet it is not too late to buy bitcoins because the prices of bitcoins ate going high and high so you should not be worried that it is too late its not too late just buy bitcoins and then wait and watch that how its prices are going high and it will not stop increasing its price so be quick and sont think too much to buy bitcoins becase you can trust bitcoins.