Not cutting for a year is an incredible achievement and I promise you it can be possible again in time. Unfortunately the urges can still be there and become consuming if other coping strategies aren't working.

Please try to be gentle with yourself - take it one hour or even one minute if you need to - every minute when the urges are strong is an amazing thing. What strategies helped you before? Sometimes, as alpacalicious said, those distracting strategies can be very effective until the urges pass.