Scales and Modes

I'm a little worried because I'm not able to make a move on my
guitar purchase. S.' friend couldn't be contacted as he's on tour.
Good for him, but not for me. But I'm prepared to wait.

I'm into some music theory now. I'm learning Scales and Modes. Tell
you what, the modes are really tough. I'm finding it difficult to
memorize even the names. Forget the actual scale modes.