I was a recreational, weekend user in my 20's and early 30's. No rehab, just stopped getting it and was fine. Haven't touched it in 7 years.
The binge drinking has continued and just yesterday I decided that this was it. I must end this cycle. My hangovers are much worse (I just turned 40) and just not worth it anymore. Even though I only do it occasionally, like 1 or 2 times a month, it's too much!!
You may want to stay home for a few weekends to not be tempted. If that is too hard, rehab may be needed.