How can someone get sober with out having to go to a rehab center?

Try AA: Depending on how much you have been drinking or using an addictive drug, you can stop it without medical detoxification, and begin to attend a 12 step support group each day to get you on the path to sobriety. If you have already tried this and failed multiple time then an inpatient rehab setting is the next step, and often successful. The advantage is you are away from temptation.