Not late at all,Maybe this is not the right time to buy Bitcoin for the first time if you do not like volatility that much, but price will go up after August if the scalability problem is solved. These days Bitcoin price might seem like a rollercoaster but it will eventually stabilise at a higher value so it is definitely not late at all to buy it right now. Just do not invest what you are not willing to lose, and do not even think of buying now if you do not have the nerve to experience high price fluctuations.