Which is more profitable, trading in Bitcoin/Altcoins or trading in stock market?? I have some bitter experience trading in stock market, and I am some what new to this Crypto trading, so please share your thoughts.

That both option are good choice. They have good and bad side.
If we talk about more profitable of course it crypto trading. But remember its high risk too.
It all depends upon the user interest. The growth might happen in unexpected time, same is with the fall. In such a manner trading in cryptocurrency as well stock market are similar with more risk in it. Understanding the market is important with cryptocurrency trading, whereas as the same requires lot of learning with stocks.