Thanks so much for all your replies!

I emailed T and basically said that the lack of consistency with the appointments (despite me adjusting my schedule) is not something that is going to work for me. I also said that I feel her therapeutic approach is not most suitable for me at this time. She emailed me back basically saying she understands and is sorry that things didn't work out.

I keep comparing T's to my ex T who I was very attached to. It was by no means a perfect relationship but I felt a strong bond with her. I'm thinking now that I will go and see the male T I saw for a few months last year. I didn't feel the same attachment to him as I did ex T but I mostly enjoyed talking to him and he was consistent and genuine. My main reason for not continuing to work with him was that I found it awkward discussing sex/relationships with someone of the opposite sex but I think that is something we could work through.