Larissa, glad you’re back and reaching out. Do you know what you did or didn’t do causing a relapse?
I have three questions to ask pertaining prior to…..
•Were you checking yourself daily for selfishness, anger, fear, and resentments?
•Were you praying and meditating throughout the day everyday?
•Were you giving of yourself unselfishly to another alcoholic? Carrying the message.
I’m guessing the answer is no to each question. Meet with your sponsor weekly and dig deep into steps 10-12. Get back into the Big Book. Read Drop the Rock, the Ripple Effect. It’s on step 10 and our Emotional Sobriety. Not reacting with feelings like we use to.
Since you had a considerable amount of years sober, you likely had been through all 12 steps. Sobriety is learning from our mistakes and moving forward.
Best wishes. 
