Should i wear a wig for the engineering interview?

Nooo no no no. Don't wear a wig. You don't need to cut your hair either, just wear your hair up, so it shows that if needed it can be put out of the way. I think if you clean yourself up, pull your hair back you'll be fine. you'll look confident. Don't try to pretend to be someone your not because then you'll be stuck wearing a wig to work for a long time.