Also Is your concentration lapsing,...
P.S: Don't chuck the piano, give it to someone else!
Thank you all for your words of support. I guess I'll give it at least until spring to see how much I improve over the winter. Then I'll be in a better position to decide. I've actually just started learning several more difficult pieces (levels 5 - 6) and I should have them learned by spring. Then I will have a larger repertoire to be disgusted with.
But one thing I will say is don't be persuaded to get a teacher unless that teacher is good, and that teacher has a bunch of adult students they've taught to a competent standard. i.e Only commit when you find a good teacher, don't think a teacher is better than nothing.My experience says that's not true, I've taught myself pieces to the same standard, if not better than a bad teacher has easier pieces - anecdotal but I've done that experiment.
Anyway, I went to see her and played I what I've been working on which at that time was just some Hanon (don't tell Bernhard), some Köhler etudes, and some Burgmüller pieces. Plus I had one little piece that I wrote myself. She thought I was doing very well considering how long I had been playing at the time. She said that my form was good (I had actually read Chang's book previously and I think I had pretty good posture, etc.), and she basically told me that I probably wouldn't progress any faster with her than without her because it's really all up to me to do the practicing.
I think adults tend to have very high standards, and you have to cope with taking the same amount of time a child takes to learn