I'm super obsessive about trying to make sure that both my client and myself are getting a fair price. I've been working for a long-term client and I forgot to include meetings into my price (and hadn't had a meeting with them so I didn't know how exhaustive the changes for this project were going to be), but also my commission prices were done under the impression that people would want a million little changes, which hasn't been the case so far.
The result is that on this long-term thing I've been kind of hanging back and not doing anything until I need to/feel like doing it, and I'm way ahead so there are months where I don't do anything, and for commissions, I keep telling people my price and get ghosted, because my prices were a too high. I'm think it's figured out though.

I dunno, I'm still figuring this whole thing out. I've mostly had industry work until now.