If each day is representative of our ability and worth as a musician, then we’re probably not very good musicians. We’re going to have a lot of bad days. Days when we don’t practice, don’t practice well, have a bad gig, or just struggle with our musicianship.
Instead, let’s judge our willingness to show up every day, or almost every day. If we do that then we have an opportunity to feel great about what we’re doing, no matter how difficult or slow moving it is. In addition to that, it’s actually a much better measure of what it is we’re trying to be. Musicians are people who play music, so if you play music you’re as much a musician as you’ll ever be, or ever could be.
Once you’re a musician, you get to decide what kind of musician you want to be.