All of what has been mentioned above I very much relate to and empathize with. I spent about 7 years working on and touring with a live band and didn't realize until it was over how burnt out and how much I had lost the plot that began the whole endeavor, which is not to say that it wasn't worth it at the time, just that it can be a sort of habitual trap. In the past year, literally since the pandemic started I've been focusing only on making electronic music, it's not my typical comfort zone, and I constantly bang up against the existential issues of whether what I'm making is authentic, if it is consistent, if it is "worth it" etc.
I've found that I have on and off days about the whole project, but in general, I'm in my best spirit when I can assume the "I don't really give a shit what people will think about this, as long as I can enjoy it" mind frame, and am actually enjoying making it. I think it's very easy to get distracted by the concept of what something should be versus the motions of just making something for the sake of creating, it's easy to get lost in the sauce but I think a healthy reminder to be set is as follows- the stuff you make is just what it is, no matter how anyone else thinks of it, you made it, and you are left to decide what you think it really is.
Sorry if that all sounds absolutely corny as fuck