You are not alone in this.

In a study of 1,481 participants that focused on 9 different subtypes of body-focused repetitive behaviors, about 97% of participants said that they had engaged in at least one BFRB at some point in their lives. 24% of participants reported a BFRB that met a clinical threshold of severity. Nail biting was most commonly reported (11.4%), followed by biting/chewing skin (8.7%), skin picking (8.2%), and lip/cheek biting (7.9%) (Moritz et al., 2024).