Cardeno, when I asked you whether you were venting, I was asking you what your purpose was, in other words, what we are aiming for here as we write. As you probably got from my first posts, I get it about the experiences you had, and that receiving good teaching isn't at all a given - and you probably caught that I had my own experiences. I also found that iffiness in teaching leaves us with the results of that, and later I found some solutions. I didn't know whether you were interested in any of those, in insights in that respect - i.e. that is an aim one can put toward this kind of topic. In any case, I did offer my views i.e. what I learned, in case it was of interest.
At some point it did not seem you were interested in such things so I was checking whether you had any purpose, or simply wanted to state to teachers that you have experienced poor teaching.
I hope that clarifies this part. We (some of us) respond according to what an OP's purpose is.
The second topic was about learning itself, when it is not for the purpose of having a career in music. This comes up because the topic of learning (i.e. teaching and teachers) was on the table, as well as the topic of not aiming for a career in music. It also came about because of the suggestion of college or university. I disagreed, because with a kind of background where one can end up with holes in fundamentals, that gives the wrong teacher. You had not responded to that suggestion with "No, I don't want to have any teacher of any kind ever." but simply, "No, I'm not seeking a career in music." Therefore one might surmise that you might be open to the idea of a teacher, if a proper and suitable one might be out there, and I explored what that might look for. The bottom line, however, is that the purpose of the thread itself is unclear. You may not be looking for anything, or want to know about the existence of alternatives to your experiences at all. In which case I've sort of been wasting my time.

I don`t know why you have to learn to appreciate music, ....
I wouldn't know why anyone would have to learn to appreciate music either. In fact, I've never quite understood the word "appreciate" in the name "music appreciation courses" - I figure the name is shorthand for "Stay away from such courses." You seem to be writing about how one feels about music. Such things don't interest me at all.
You say "the music becomes richer and fuller since you can perceive more ot it...." the music hasn`t changed at all it is you that feels different from the time before and feel the music more or less intensively..
Of course the music has not changed! Why would it have. And again, this has nothing to do with "feeling". My father taught himself furniture making and became quite a craftsman. I have a few things he made in my home. When he walked into a room he might get a special pleasure out of a seemingly simple piece of furniture simply because he saw how it was made, and delighted in how that was done. At the same time, if he saw something like that, it might also give him ideas for the next thing he wanted to make, using some of the ideas he had just seen. That kind of thing.
You keep talking about snobbery, and then you talk about things like fashionable turns (ornaments) in music. It seems you got exposed to some rather ignorant attitudes, and that would turn me off too. Actually the reason I ended up not knowing the names of composers, pieces etc. was as a reaction to that kind of thing in the household (took my decades to suss that out, when my ignorance on the matter of names came out). We're in very different places. My craftsman analogy is much closer to it. There were a lot of things I figured out about music on my own and a lot I could do. Unlike you, I didn't even get a single lesson until I was almost 50, and these to a great degree went in the wrong direction. When it did go in the right direction, it was of a kind that allowed me to do more with what ** I ** perceived in the music, because I was missing skills. I'm talking about something that is very simple. Nothing with snobs, or standards, or ornaments, or tastes, or the elite. This is where I'm at.
And with that I'm sure we're caught up. I'm getting a feel for what you got exposed to, and this would be a real turn-off for me as well.