If you always put limit on everything you do physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus and you must not stay there you must go beyond them.
I don't want to discredit people's individuality but I think people are pretty much the same. People are very similar. If you have a good enough imagination then you can feel things that you personally have never done before. That's acting.