I think that you dont have full potential knowledge about bitcoin that is why you are telling that it is bit late. As per me invest anytime is never late. Now we are thinking that who ever invested in 2014 were good but in 2021 you will think that investing in 2018 was good. So it means today will be future and that time you will regret of not investing that time. Price of bitcoin will always move high with fluctuations.