Big Louis. ...your grandmother was a very wise and clever woman.
Like you I was a very plain child, tall, lanky, skinny, thin whispy hair. Worse still I was born with a nasty birthmark on my face. Some of the comments I received as a child were beyond hurtful, but even worse to contend with were the unguarded looks of shock and pity I noticed in people's eyes when they first met me. Needless to say I hated my appearance and had no confidence.
A kindly aunt noticed my struggles and without saying a word about my appearance she taught me this little rhyme .....
"A little bit of powder and a little bit of paint
Can make a thing seem what it aint"
She didn't have a birthmark but she was deemed too tall and rather plain. And yet, she always looked like a million dollars, beautifully dressed, bejewelled and full make up. She was 96 when she died and she still looked wonderful.
She loved the old Hollywood movie stars and had a collection of movie magazines which she let me look at. And like your grandmother she pointed out that many of those stars weren't actually beautiful or even pretty. But what they had was glamour. The word "glamour" itself apparently comes from "glamere" which is an old mediaeval word meaning magic or spell.
So I followed my aunts example and learned how to make the best of a bad job. I learned how to deflect attention away from my birthmark, I learned how to dress well, apply make up. Etc.
Then when puberty hit when I was 14 the "equipment" arrived...? and the ugly duckling finally turned into a swan. I was tall, slender, long legs, generous boobs, and nice thick glossy hair. The real bonus was that the birthmark began to fade so that with the right make up it was much less noticeable.
Oddly enough I do have quite pretty feet, even though I'm now 70 - straight toes, no bunions. I think largely thanks to my mum insisting I wear the most awful "sensible shoes" when I was young. I hated them and always wanted pretty shoes but she did me a favour.
Unfortunately I do now have painful feet at times thanks to collapsed arches and arthritis. So it's back to comfy sensible shoes, my high heel days are sadly over.
As a postscript .....the birthmark became cancerous when I was 56 and had to be surgically removed. I was very nervous but the surgeon did an amazing job and all I'm left with is a faint white scar which no one ever notices, even without make up.
All's well that ends well. ?.