Struggling with Self-Harm After Years of Progress

Ive taken pride in being clean from self harm (cutting) for almost 4 years now but recently when im having my panic attacks i have a bad habit of bruising myself with certain items i have on me, i know this counts as self harm and recently I accidentally cut myself with it. I feel my progress is lost even though it was accidental… im going back and forth with myself telling myself it was an accident, and seeing what id done took me back to 6 years ago when i used to do it often and when my bf at the time would tell me “hurting yourself hurts me” and although we’re on complicated terms now i still think about it, and now i feel guilty.