Geeetech

I made a previous post about this but nobody came to help me. I have a problem with my x axis overshooting it's value. It's like there's a positive offset on the x axis and I'd obviously like to fix this because when it reaches the end, the motors continue forcing making a very loud noise and creates a puddle of filement which clogs up the nose and prevents me to print the first line. This happens in the "priming line" stage where theprinter lays a line at the front of the bed to get rid of any defects in the first line or something. The limit switch isn't the problem because I tested it and there's nothing wrong with it, the printer detects it. Please help me my printer is useless in its current state.