I can't work high up, should I consider a different career?

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Essentially what the post says. I've been working for my neighbour as a drywaller recently, and I had to do my first semi-high roof. He had me on some scaffolding, about 6-8 feet up. I'm not a very great balanced person, and i wasn't very stable up there, and we both agreed its just safer that I don't mess with Scaffolding. Should I start trying to find new work because of this? I really enjoy doing drywall, I'm good at it and its really fun, I don't want to start working behind a cash regist...