It might be helpful to understand what exactly drives that desire to email, and the frequent dissatisfaction. For me, I think it is the existence of unresolved issues itself, that I am investing all that time, energy and money into therapy and the problems still remain or improve much less than I would wish. I get much more out of approaching it in a holistic way, seeking support and understanding from a variety of sources instead of just one therapist. When I feel dissatisfied like that, often it's also in periods when I isolate too much. Basically, the therapist becomes the primary target of unloading and even if I am able to view it realistically, not expecting therapy to resolve the entire universe, I'm still not connected enough to the rest of the world. When I am connected and am dealing with my practical tasks in a decent way, my level of dissatisfaction is much lower and less frequent, because I have multiple sources of rewarding and constructive experiences. It takes a lot of effort and forcing myself into actions though, even when I don't feel up to it at all. Therapy works much better for me when it's just one of the several ways to express myself, interest and understanding, support, and palpable progress.