granite, I am so glad you were able to reach out. The Monday thing is not a failure on your part. It just sort of IS, you know?
I remain of the opinion that THIS T may not be right one for you. Her talking about her doing all of the work is a sign of how little she understands you. It may not be entirely her fault, but I certainly think it IS her responsibility -- for instance when she refused to read things you wrote to her (the thing where she handed you back the letter unread was HUGE to me). I respect that you may have a different opinion, but I would really urge you to REQUIRE that she respect you more and respect the ways in which you communicate, which is primarily in writing and through drawing. If she cannot respect you enough to work with that, maybe she can recommend someone for you who can.
And I find it hard to believe that she cannot find a single non-Monday spot to fit you in. But maybe that's just me and my stuff.