Would a 28 day stay in rehab help with these questions?
It could, but are you know working the steps with a sponsor? I was like you, the first 3 made sense to me I thought, until I started working them with a sponsor.... what a difference!!!
What I found out by working with a sponsor was that step one was the only one I needed to perfect to stay sober, I need to keep it in my head that I am powerless over alocohol once I have had that first drink.
Are you working with a sponsor? The rehab could very well get you over the hump, but in reality you say you are on a 3-4 month relapse cycle, 28 days may not be the ticket, or it just might be.
The rehab is certainly not going to hurt you at all and as BBQ shared, it was the ticket for him so it may very well be for you as well.