The six families and three rings follow Gloria Willcox's Feeling Wheel (1982), with some words adapted for teens and for feeling empty or numb.
Mixed feelings are named using Robert Plutchik's emotion pairs (1980). The body map draws on Nummenmaa et al., Bodily Maps of Emotions (2014). The advice is based on cognitive behavioural therapy (CBT).
This site is for noticing and naming. It isn't a diagnosis or therapy.