Firstly, in any forum, not just these here, it is a really bad idea to title things with requests along the line of "PLEASE HELP ME" and even worse if it is All Caps.
Some people would deliberately not read any such request, and you never know who might be the best person to help.
Now, unless you go to the "Gigs and Collaborations" section and offer to pay for the service, very few people indeed are likely to walk you through every step in writing the code.
You are expected to "do your homework" - to research each aspect of the problem including obtaining the necessary hardware - the steppers, the Arduino, the stepper drivers, control buttons, limit switches and such, and loading the IDE. You should have at least tested the Arduino and practiced writing sketches to do some simple things such as flashing the "L" LED in different ways.
You should then have a "bill of materials" and bring this to the discussion in full detail, together with the references for any part that is not already part of the Arduino project, and explain how far you have proceeded at this point.
And I should not be writing this, because it should already be described in the leading post you should have read first. Particularly points 4, 6, 8 to 11 and 14.
Plotter tables, like matrix printers, generally use one limit switch on each axis, not to "prevent the motors to go way beyond the acceptable range" because that would mean the software was simply useless, but to be able to find the zero point of travel on each power-on.