See i always say it's never too late to invest on Bitcoin. This year of course the price of Bitcoin has shown an infinite upsurge and was beyond everyone's expectations. But still i would say the golden era of Bitcoin is yet to come in the coming years. We may see double the rise and that would be absolutely fantastic if it happens!
Investing right now won't be a problem but you need to apply skepticism throughout and remain vigilant for the price trends.