Every musician I've ever played with that I thought had an inherent musical "gift", when I asked them how much they practiced, the answer was always more hours than I was putting in. So, I eventually decided to join the gifted...by practicing a lot for years and years. Net result: When I've auditioned, nobody has ever asked me if I was self taught (before or during an audition), they just hire me because I can play. One of the things I like most about music is that talking about how great you are isn't a thing - you show, up, you play, and.....pretty much everyone can figure out where you are without all the unnecessary jaw wagging.
A teacher can point out things you need to work on. Going out and gigging (if you pay attention to where you're working your ass off to keep up, and aren't in denial) can provide the same info. It's not whether you hire someone else as a teacher or not that determines your progress; it's whether you decide to work on getting better, and put in the time and effort in to get there. In my case, I have classical training in music, but specifically on bass, I'm self taught. Where does that put me in this discussion? I don't care. I can play well enough to do what I want, and...I'm still getting better.