It's possible that you need more support than what a weekly group can offer you. Don't feel bad if this is the case. Most people who are new to recovery need professional therapy before they begin feeling better. This might be what you need as well.
You'll be able to choose between inpatient and outpatient treatment. Inpatient is best for those who need a higher level of support and help. For example, maybe you're nervous about living at home because you fear relapsing. In that case, it's best for you to go to an inpatient rehab. On the other hand, if you have a supportive family at home, outpatient might work well for you.
Everyone is different as far as what will work the best for them. There is no "right" way to go to rehab. All that matters is that you get the level of care that's best for your situation. If you do that, your chances of recovering will be very good.