Let me spell it out for you, it's a whole lot wore than you can imagine. I"ve been trading for over 40 years, over 20 online. Usually I worked with better than 1/2 mil which they would let me leverage 10 times. The major traders, they profile you and take positions against you. There's actually a person sitting at a desk watching your every move.
One major trick is to put shares in your account that they don't buy on the open market. Highly difficult for a stock to move up when there's no buying activity. they buy you shares back when yo decide to dump it. They are watching L3 and provide the institutional trades. Rigged game.