I went twice a week for a few years...I couldn't hang onto the connection well enough to do the work when I saw him once a week. And then when we DID get into my story, it was too overwhelming to wait a week between sessions.
I saw him once a week for the past nine months, but I think I'm going to go back to twice a week for a little while while I work through some hard stuff again.
I can't remember if twice a week was his idea or my idea, but I know we both agreed it was helpful, and probably necessary. This time, it's my idea, but T agrees.

