I'm terrible with heights too. I went to a memorial building last year and they had mesh stairs and I was so anxious to go up it, but I did because my family wanted me to come up. The view was gorgeous, but I couldn't go down even though it was 2 stories high. I'm afraid of heights and stairs so I had to sit on my butt and crawl down while I was crying. I can climb a mountain perfectly fine, but I'm bad with man made structures since I feel that they aren't safe. That's why i don't like stairs either, they seem like they would be so unstable and I hate when I see rust on the sides of them.