Definitely know how you feel. As I stated above, I went almost exactly through the same situation!
While it is important to cooperate and harmonize and all that....it is important to remember that you ultimately are there to take care of yourself. If it is not cutting it...finding a new home that will help you grow may be the best thing!
On another note...if you are truly good at aikido...give it some time....they will figure it out and turn toward you.
I know all too well exactly where you are coming from!