Hi, Peaches, and EH. I think you are both very courageous, and it is lovely you being able to be together.
Peaches, I think mouthing off is something we (subs) all do - especially if we feel like we're not getting enough attention. We are DREADFUL attention seekers! mememememe.
One of the things we all have to learn is to trust our doms and to be patient. Another thing is that we are all likely to rebel from time to time - as we learn more and push ourselves more, as we start to fall more under control, our non-controlled self fights back. If it happens, it's also natural. Don't panic! I am sure EH will be able to handle it in a way that is right.
As long as you are both still communicating, it'll be fine. Be very, very happy!
BTW, are you still talking with your mentor? I hope so.