I spoke many many time.
It is identical to bet an abalone to win a peanut.
No offence.

This is the reason why >50% people actually lose money in stock market.

Buy a stock, gain peanut, cabut. Forever earn peanut. Even the stock flying to the roof afterwards, chance of win abalone gone, due to cannot withstand the temptation to win a peanut. 
But make mistake time, hold and hold, lose abalone. Even cut loss at 10%, also hurt big.

Mostly you gain 2-3 times is not enough to cover 1 loss one.

The more in and out the market, the higher chance making loss.
Unless one is really really good in trading. But majority people are not. No offence. 

It is very easy to know most people lose money in stock market.
A stock was RM1 10 year ago, now also Rm1. With everyday trading and volume transacted, you don't need sophiscated mathematics to know people are losing money in this stock mostly. Every transaction, commission, stamp duty incurred, while stock price/valuation remain the same, you can do the math how much money lose due to commission alone.

There are many many stocks especially goreng stocks, that price is same or even lower than 10 or 15 years ago.