I'm a newb learning pentatonic scales in Am down the fretboard. It's taking surprisingly long with some shapes seeming easy to remember and some won't click, even though they are not complex.

I enjoy learning and practicing this. I picked up the guitar 6 weeks ago.

When I finally get this down I'll be happy. But wait... what about other keys?

This is obviously a newb question: will I have to master this all again for every other key other than Am?

Thanks for the any advance notice you can give me!

Alan

PS I barely know what key means