I spent five years in therapy in my late 20's-early 30's and "graduated" when I felt I was done. What I learned from therapy helped me very much in changing my life to what I wanted it to be, improving my relationships with other people and setting me on a related, but different, career path. Shortly after I left therapy, I met someone who I then married, moved across the country, and took a job that was much better suited to me. For 15 years, life was good but when I ran into a difficulty that I needed to address, I went back into therapy. So I suppose the other thing I learned in therapy was that it's okay to go back when you have new issues that you want to address. Being done is not always being done forever, and knowing when it would be useful for me to seek help turned out to be a good thing.