the button is called "S" to make yourself stop.
But what you will find is the high level players are constantly using their right click to move their champion.
Constantly.
The "correct position" at which your champion stands is constantly in motion. Sometimes you need to twitch forwards, sometimes backwards, there is an "ideal" place to stand depending on your match up and about a dozen other factors which change every second.
Takes a lot of experience to get used to this. Usually the experience will be gained when you are too far forward and die. Then you think "oh hey, I guess I was too far forward that time for reason X". But eventually you learn.
But the idea is that you ONLY allow your champion to attack a minion when it will deal the final blow.
This prevents your wave from pushing too far forward too fast, which can actually be bad.
And so by proper last hitting you can get the last hit on every minion in the wave without pushing your lane further than it should be at that point.
Also do not feel bad when you play badly or simply have a bad game.
You are a new player and so it's going to happen.
But some people are naturally *** holes and so they are going to try and make you feel badly about it. Don't let it discourage you and just keep improving.
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~Ç~ Eff_Dee
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