I play in a band, I write songs, I sing, you know, perform on stage.
Doing something that you love regardless when it's a blockbuster movie or you're writing a pop song or trying shamelessly to succeed in something is not selling out. I think that's actually fine, and I would encourage that all the time.
It's a really big struggle for me to write a song. Songs take either 30 seconds for me to write or a year or two to piece together, depending on the song and how I'm feeling on any given day. I don't really like to write music at all unless I am completely unbothered by touring.