Welcome to the forum Eva!!
Lean on the supports you used when you got sober for those 12 months. Maybe make notes on all the positives sobriety brought you and use them as reminders when you feel tempted to pick up.
You’ve done it before, you CAN do it again!
Checking in daily on the below thread really helped me with accountability, you may find it useful aswell 
@RobZombie 
guess who’s back… Mick is back… good to see you here!