I've started writing in the parking lot immediately after T, but to answer a specific question: "What do I feel right now?" My T is very skilled at making sure to stop the difficult stuff with enough time to help me recenter (occasionally with a meditation) and catch my breath. Then we often do a little small talk about my plans for the rest of the day or the weekend (the latter during our Fri appts). We always leave enough time for a big hug. The trick is to help me feel back into the external world a little, calmed, loved, supported, etc. so I can carry on with my day. By writing what I feel in the moment I leave the session, this helps to remember our connection and feeling safe after just having shared the hard stuff (and protected by the past from hurting me in the future) so that later if I do go back to the more difficult stuff in my mind or by journaling I can read what I wrote right after I left her office, which tends to remind me that everything will be OK.