As youngsters, we were often told we could do anything we set our minds to do. At this point in your life, have you accepted the fact there are indeed some things you can't and probably will never be able to do?
Pass any kind of ball to anyone else by throwing or kicking, especially kicking. The last time I got it down to about 18 degrees out, but it was still way over there. I was never going to be good at team sports.
Other than be skinny I honestly can't think of anything that I have really desired to do that I have not at least given it a try. I am 6'2" and 220. One time I got down to 195 by only eating one meal every two days. I guess that I just have a very efficient metabolism. Even now I only eat once a day and am around 220. My Dad and brother were both over 6'4" and string beans!! So disgusting.