It depends so much on each therapist, client and circumstances. Me and my former t ended our three year work together over a two month period with a three week break for Christmas. We spent the final few sessions reviewing what I had achieved with her, talking about my grief and also my plans for the future. We wrote each other a goodbye letter and read those out. It all felt very positive although inevitably there was pain too.

The decision and process of ending should be in your control as far as possible. What do you want from it? No T should 'hook' you back in again if that's not what you want. The goal should be for you to feel you can manage without therapy. If your T offers a phasing out of sessions - and most ts do -that's your chance to look at what you want to say/do before you terminate. I'm assuming you feel you're done with therapy so how about you look at how far you've come and make the ending a celebration of this?