When I was a kid, I desperately wanted to be a boy (only one person in the world wanted that more than I did - my mother). Since that was not going to happen, I desperately wanted to be tall and boyish. At 14 I got a boy haircut (which did NOT suit me). I was severely underweight, but I wanted to be tall to be able to ride my brother's enduro motorbike.
I ended up being a tall woman (at least for Italian standards). Years went by and I also ended up being a fat woman.
And funnily, I now wish I was shorter, smaller, petite. I am so jealous of my short friends who, even when they get fat (they usually don't), have such little weight to carry around.
I still wish I was born as a boy.