Thank you for accepting your limitations. They are many, and varied. The truth can be an evil and unforgiving mistress.
However, she can also be a gentle lover if you get to know her? I propose that you invite her to dinner... Once you begin a dialog? Who knows where it will go from there? What is important is to remember, "we can all be better?" All of us. And to begin with a point of view that, "Here it is, it's the best I can do, and it damn well better be good enough!"
Well, it's a bad place from which to start? (not saying that's where you started)
I personally am not a mixing or mastering guru, there are many here?
What is important is to accept that we're all "here" and we're all trying to get to "there" And the sooner you accept that you're "here" and trying to get "there" the better off you'll be, everyone can improve? All of us.
Very few are "there..."
We speak their names in hushed tones... But it's best to accept that most of us suck? And could use improvement. And all advice is not good, but some of it is?