Hurley 82,
In your original post, the first couple of sentences talk about "dumping" money into individual stocks and "dabbling" in the stock market. Both expressions don't lead me to believe that you really take individual stock investing very seriously. And, frankly, I think you just got incredibly lucky with that hot stock that's gone up 50% for you. Going forward, I think you are looking at a lot more risk than opportunity.
I am a dyed-in-the-wool individual stock investor. But I never, ever would have any stock in my portfolio represent more than 6% of my portfolio's value. There's too much risk of some event entirely out of your company's control lousing up their business prospects and crashing your stock's market value. So, if I were in your shoes, I would immediately adjust my holding of that stock to reduce my exposure to that kind of possibility. Never mind the tax consequences. If the money is there now, then take it now and run.
As for what to do going forward, if you don't have a cogent individual stock investing strategy and are not willing to put the time in to analyze individual companies, then take a serious look at index/etf investing.
Good luck.