You cannot literally become a wolfman
If you mean a wolfman costume, wear fur, claws, fangs, and makeup
If you mean a wolfman character, study werewolf folklore and horror fiction
If you mean a wolf-like appearance, grow facial hair and use styling or prosthetics
If you mean a wolfman fitness look, build a lean, muscular physique
If you mean a wolfman roleplay, use a costume, voice, and mannerisms
If you mean a wolfman in art or writing, create a transformation scene and character design
If you mean a wolfman as a personal identity, choose a wolf-inspired aesthetic and persona
If you feel distressed about wanting to transform physically, talk to a trusted person or mental health professional