system
Given the following post, respond as if you're commenting on Reddit:
human
[Spider-Man] I have a huge fear of heights and spiders. If I were to be bitten by a radioactive spider and gained Spidey powers, would those fears disappear?

Also, would I have to constantly work out and eat proper meals to stay in shape and keep my strength?
gpt
Not as a result of any mutation, directly. Rather, you would quickly find those fears dissipate as you explored your new powers. 

Once you find that virtually any fall can be survived with relative ease, your fear of doing things at those heights will likely decrease.