Even then, with research you are still only guessing that the price goes up, or that you are buying at a low price, it is just a form of gambling
I think you don't the meaning of share market investment that's why you telling that investing in share market is guessing game. But real scenario is your buying a business if you don't understand the company business then don't invest in that company. So as per me share market investment for long term is totally different from gambling.
So I am guessing you are extremely rich from this, like millions because if you are able to do this you should have no problem repeating it. No?