You're not too late to invest instead make this as a beginning of your journey invest now harvest later.
Its end of the year and the price is too high and still its going more high so in my opinion we need to wait for a little time or if you are interested to invest in bitcoin so you can because as I said that bitcoin is still going high so if you invest in bitcoin now a days you can but then you have to wait for I right time just keep on hold and when you come to know that the price go more high then sell it out and take a very good profit from bitcoin.