That could be a lot of money make sure to used it properly. I myself was also too jealous of you luck really comes to a person once so better make used of it. I advice to sell it little by little or if you still belives that the price can go higher then be more patient in waiting
For me yeah you could be a millionaire if you workhard everyday just to earn bitcoins, but its not easy to get bitcoin and its a long way to gain/earn many bitcoins just to become a millionaire. If you buy bitcoin on the year 2009 or 2010 you surely now a millionaire and have a lots of money but if not just workhard everyday to pursue your dream and became a millionaire.