RGSS scripting dissections and explinations

[Siletrea]

been a long time since I posted here...but I think I'm finally ready to seriously try scripting again!
re-reading through this old post I realized something...I remember none of it and none of it makes any sense anymore

SO!
I'm starting again...from scratch and I'm going to try and do simple things that I can accomplish through scripting to give myself a chance to learn it!

firstly! I want to make a script that makes a window popup in the screen with text telling me to hit a button and when that button is pressed the entire game window shuts down

so I'd need to learn how to make a window
then put text in the window and position the text where I want it
then get the game to shut down via button press

what do I need to essentially "know" in coding in order to pull this off

do note that any and all explanations should be explained as though your talking to a 6 year old as I have horrid times with terminology

I have a faint idea of what would need to happen to get it to work but no coding knowledge of whats really needed to pull it off

*when game opens make window
*the size of the window must be set and the position of the window set using right/left up/down coordinates
*the window will have text inside it
*make text for it to say
*the size of the text must be set and its position using right/left up/down coordinates
*a button must be chosen to act as the kill switch
*the game must know that only when that button is pressed ONCE can it shut down
*a kill command must be put in

I believe this is the right "structure" for it explained in steps
if theirs anything I've missed in the steps do let me know!

again just to stress this

any and all explanations should be explained as though your talking to a 6 year old as I have horrid times with terminology