To me, fear is frozen energy, and it's great fun to go about releasing it. To get over concern for heights, my main friend that I do Parkour with and I sometimes jog on top of walls with a 5 to 20+ foot drop off on one side. We're aiming to move as freely as we would if both sides were only ~5 feet up.
As for the fear of drowning listed in the "overcome your fear" article, there were two periods in my early life when I almost did drown but made it through fine, and then in my early teens I experienced drowning peacefully in a dream, not feeling a need to fight it, then reincarnating into another dream with full recall of the last one
I don't know of having any paralyzing fears at this point, rather there are just some situations in which I'm sure to think and act more carefully than usual. For me, fear is a call to mindfulness.