Question...

I know about the glitches and such
but what i wanna know is say for example box gliching after the corner and back and forth motioni seem to get about half way in it i think im doing a step wrong somewhere i cant get fully into anyhting..

tips?

When you're halfly in, press crouch.

Or try corner glitchin' standing(with holding shiift)

Don't say thanks, press it.
And you have to hold shift, because than you won't fall off so easely.