How do you change the pixel count in paint?

Question

im trying to make an icon for my sn. i looked at this other questions answer and it says

"well first you have to have a blank white picture in paint (you know the computer program under accessories) and have it sized at 48x48 pixils

and i think it's best to maximize it (like zoom in)...

then you do your font (if u want font) in pixils... 3x5 letters are best (if u dont know what im talking about look at other icons and you'll see what i mean)...you have to make it pixil by pixil"

will someone help me understand what this means and how to do it? i know what paint is, but i dont know where to find this "pixil" stuff...

and what is "3x5" letters??

Thank you sooo much if you take the time to answer my question!!

Answer 1

If you zoom in far enough and make a dot with the paintbrush, a single square that appears is a pixel.