I'm into sincerity in music and sincerity in art. If it doesn't feel true, I don't want to do it. Things that are too dramatic scare me. I think that's why I don't always fit into the world of performing arts.

This quote means that the speaker is looking for true, genuine and honest art. They don’t want to take part in anything too dramatic or exaggerated. The speaker also suggests that they don’t always fit into the world of performing arts because they don’t like doing overly dramatic things which other performers do.