RecruitingBehavioural interventionGrow With Grit: A School Nurse-Led SBIRT Pilot for Early Anxiety DetectionAll enrolled students and their parents or guardians will complete baseline anxiety questionnaires. Students with a positive baseline screen will receive a brief school nurse-delivered coping skill, referral support when indicated, and follow-up assessments at approximately three and six months. Students with a negative screen will not enter the intervention and follow-up phase.