NE, it's fantastic that you are signed up to do outpatient. I enjoyed treatment. I am adding a caveat. I said I am sober after my first serious attempt. Ten years ago I did outpatient and got pregnant right afterwards. It was a good experience and you will get out of it what you put in. It was a very Collegial atmosphere. People got very chummy very quickly. Numbers were exchanged. People got on a "we're all in this together, I got your back" high. Many of those people relapsed shortly after leaving. So be as friendly and supportive as you want, but this is for you. When I did inpatient treatment I was wary of all that and it seemed to work better.
Good luck. It's such a step towards healing.