I agree that therapy isn't for life - but self care is. For instance, even though my CBT program is behind me, I continue to do the work nearly every day.

I also believe that goals should be set - ones that are both measurable and realistic to achieve. If that means small increments then so be it. Ultimately I think your therapist should have set an agenda with you and established what the overall end target will look like indicating it's time to move on. Similarly, s/he ought to be performing an ocassional check-in with how the plan is coming along and whether tweeks are necessary to it.