This really depends on the issue at hand and the context in which you are experiencing the problem. At the first session, you and your counsellor will discuss the optimal frequency and likely duration of counselling. With more complex and long standing issues, you will likely need more sessions to untangle things and build up internal stability. Therapy is a process. That said, most of our clients experience some relief early on in the therapy process, and indicate that they are experiencing positive shifts in their lives after 4-6 sessions.