Sweets, I have been in and out of therapy since I was 16. I have also been hospitalised 14 times since then......I am now 35. I think little of how long, more, what am I getting out of it? and Is this important to me right now?
Therapy has more often than not, saved my life and my sanity.......you really need to assess where you are at. As Echoes said, can you see him more? Can't remember, but do you have a psychologist as well? They are invaluable. I love my pdoc, but my T is the purveyor of wisdom and therapeutic benefit.
Don't be afraid of how much therapy you need or seem to want.......we all go through periods of greatest need.......as with all things it is in flux and will change over time. Think little of how much, think more of if it is helping......if not then you need to seek alternatives.....
You take care, trust the process and we are here......

