First, I'm sorry your friend did that to you.

next... I know it feels like you've spent a whole year on not doing it, and now you failed but, I think you have to look at it in a different way.

you WON for an ENTIRE year.
I have relapsed too recently because life just got crazy. It happens. But remember, there was an entire year where you were FREE, you can , yes CAN do it again. Be proud for lasting so long, don't be afraid to admit it now