How Does One Achieve True Happiness? (from Lisa)

(For all my family members and support group who may be reading this, let me preface this post by saying I am not suicidal, depressed, or in crisis. This is just something I have been thinking about and wanted to get some thoughts and feedback.)

The heading says it all, how does one achieve true happiness? This is my question to you all. Over the past year, I have been seeing a wonderful therapist. In therapy you take a look at one's "self". The thing that defines you. I am trying to find my "self". Not Lisa as a wife, daughter, sister, friend, or coworker, but who I truly am. I think alot of my "self" was defined by what others thought of me. And my happiness was defined by what I could do to make others happy. Although David and I had problems, I looked forward to coming home to him. This is one of the things that made me happy. Now that is not possible - at least not for 6 years. I have a great husband, family, friends, support group, pastor, job, therapist, and most recently God in my life. I am healthy. I am educated. I have opportunities. But for some reason I don't feel happy. This doesn't make any sense. I do things that make me happy, such as exercising, socializing with friends, or watching my favorite TV show, but that is short term. How do you achieve true life-long happiness? Is true happiness something that you have to work at? Or are you supposed to get happiness in the small things? Do I need more faith in my life? Or do we go through this life only to get to the true happiness in our next life? I have heard about these truly happy and content people. Where are you? And how can I achieve?