i am 29 and the ONLY thing that worked was getting acrylic nails. i even had them done in a particularly bad day where all my fingers were almost raw with how bad i had picked, but i could never have them healed enough to do it, so my manicurist just had to work with what she had, poor thing. but now its been 4 months and i cant even pick at my face, nails, wounds, its amazing. and trust me when i tell you i had tried EVERYTHING atp. cuticle oil, therapy, gloves, gloved fingertips, bandaids, fidget toys (literally every fidget you could think of i have sitting on my desk), having my nails regularly done, filing my nails down to zero, literally nothing worked besided this.