Don't think it says anywhere she's aiming to be a "professional" singer right now, or even a singer in a band? sounds to me like she's having a go at improving her skills, with some good support from a friend/friends, and that this is her next step on her singer path.

I would gently suggest that professional singers were once non-professional singers; that all singers and bands are at different stages on their musical paths; and that you don't have to be professional to be a good singer.

My own aim is to be the best singer I can be, not necessarily a professional one.