I feel so ashamed when I have to erase an eye and redraw it in a different position: who do I think I am, thinking I am up to snuff to show my work around to others when I can't even draw without such heavy reliance on an eraser?

I feel exactly the same way! Except substitute "eraser" for "ctrl+z" XD

And I'm glad you can get over that and show it off anyway, I like your drawings.

It reminds me that we all have a process, and people don't just wave a magic wand and get it perfect from the start every time.

Exactly why I like watching other people's processes too :D