5'11" and you need to be taller? Get over it.
There are plenty of people shorter than you here who would benefit from another few inches (like meeee)
I'm not unhappy about my height, but I'm convinced my life would be marginally better as far as romance, opportunities, respect, etc, had I another several inches.
Oh well, what can ya do. I'm not worried about it. Been living at this height most of my life!