"I've been doing this stuff for so long it's the one aspect of my life that I've paid attention to and really sort of not paid attention to the rest of it"

This quote by Joan Jett talks to the commitment and focus she has actually put into her job. She has been doing her craft for so long that it has actually ended up being the one point she has actually taken notice of and has actually disregarded the various other facets of her life. This could be taken her placing her job first and not having time for other things. It might additionally be interpreted as her having a single-minded focus on her job and also not permitting anything else to distract her. It can also be interpreted as her having a passion for her occupation and also not intending to do anything else. Whatever the interpretation, it is clear that Joan Jett has put a great deal of effort and time into her job and has made it her priority.