I'm sorry Gadgetsmile

. You have so much on your plate right now, I really hope things get more stable for you soon. It would be very frustrating to want the support of a T and not have that available.
I am not sure what type therapies are most popular with T's in your area or what modalities would be available with the T's provided by the NHS. I know this is something you really want, but sometimes therapy can be a very painful process. Maybe the nurse is considering this when she says you are not "stable" enough and just doesn't want to add to all you already have.
I don't like the words she used and it would make me mad too. Clearly you are extremely strong and your strength will carry you through this. If you feel that she really does not know what shes talking about, is there any way could speak with mental health nurses supervisor? I don't really know how it works there. Is there another option for maybe talking to someone else to impress upon them your need for therapy?
Please keep us posted on how you are doing