i pulled off being bald decent enough... if you are lean and have some size, you'll be fine.  Get a nice tan, hit the iron, buy a new wardrobe, and OWN it.  
I keep my hair fairly short these days.  I've been taking my vitamins, lots of fruit/veggies, clean living, and it's grown back thicker.   Stress really will make you thin out fast.  And a lot of is just massage and styling.