"Sobriety is like riding a bicycle - you can coast for awhile, but if you don’t start pedaling, you'll soon fall on your ass."
It's Ok to just show up at meetings at the beginning. But soon, sobriety requires getting a Higher Power, Sponsor, and Home group. Doing the steps, cleaning up after meetings, helping others, sponsoring, service work, all are critical to the change you need to make in yourself. The Big Book says you can't rest on your laurels. Addiction is a chronic disease which means it can never be cured, but that it can be arrested so long as one keeps up with one's treatment.
Ask yourself if you are coasting or doing something new to help your sobriety. Talk to your Sponsor about it.