You'll never know if you can do Soarin' until you do it......kind of a bummer, I know.
This is what my hubby did (he also has a huge fear of heights) before riding Soarin'.
First, he went to youtube.com and watched the entire Soarin' movie several times so he knew what to expect and what the scenes looked like. This actually is what probably helped him the most.
After spending a day riding other rides and getting his comfort level up with varying experiences, by the time we got to Soarin', he was ready to give it a try.
We did sit in the back row, and he did get a little nervous and tense at the beginning when the seats lifted up. But after the movie started, he relaxed and actually started to enjoy it a little. Sure, he still had a death grip on the handles, but even though he was a little afraid, at the same time he was enjoying the thrill.
He enjoyed it enough that he kept riding it through the years. He experienced the second row, then the first row, and it ended up being one of his favorite rides. He still may get just a little nervous to ride it, but really it's more excitement instead of nerves. He doesn't even hang on to the handles anymore.
Actually, Soarin' and other Disney attractions has really helped him with his fear of heights. However, he still isn't a big fan of the SunWheel at California Adventure (he'll only ride the swinging gondolas.....go figure

), and he absolutely WILL NOT RIDE THE ASTRO ORBITOR AT THE MK. (He'll ride the one at
Disneyland though.) He rides all the other Disney attractions, and although he won't do open drop towers because of his fear of heights, he LOVES TOT!
Okay, enough of my ramblings. Watch the movie on
youtube a lot and get comfortable with the scenes, go to the MK for an entire day and ride, ride, ride to get your comfort level up. Then eventually make your way to Epcot and give it a try at some point (third row of course).
You'll never know unless you try it. Prepare yourself and ease into it.
