Sorry you're so stressed and anxious. If you don't "waste" your limited benefits on her, where else is there to direct them? Would those options truly be more beneficial than seeing the therapist you've already established a working relationship with? (assuming you've had a good working relationship) Is your feelings of her being annoyed based on her actually saying that, or you just thinking it and your brain has you convinced?
Are there any fairly simple and easily accessible activities you can do on your own that soothe you that perhaps maybe you avoid because it just seems like too much work? I tend to talk myself out of stuff no matter how much better I know I'll feel afterward. Things you really enjoy and can look forward to that can distract your problematic trains of thought into a kinder direction? I sometimes find I know damn well what I could do, but my mind and body don't seem to want to work in concert to make it happen, and even though my body is bigger than my brain, my brain more often wins, until my heart gets involved.
Are there any free resources in your community for fun things you'd really enjoy, educational things that you really want to learn about, therapeutic things offered through local shelters and such that could occupy your time and mind until the end of June, at least? Some places let you volunteer your time and help in ways that best suit your desire to participate in exchange for admission.
I don't know specifics of what you're personally dealing with, so please forgive me if what I'm suggesting isn't helpful. Best wishes in finding relief.