I don't mean to be rude about your father - I'm sure you love him and e loves you, very much.
But this is very concerning and angering to me. As a mother, and as a teacher of kids (mainly girls) your age, I find what he's doing rude and frankly manipulative and borderline abusive.
Again, I don't mean to offend you, but this is over the line.
I had my husband read your OP (also a teacher), and he rolled his eyes and said "that's awful."
I wish I had further advice for you, and I swear I'll stop posting on here - LOL! - but I just had to let you know that.
Hang in there, Hun!
2c/3a/3b, Fine/med, Dense, high porous, & normal elas.
Lo-poo - Renpure Keratin, SMR, Giovanni SaS
clarifying - mix Johnson's H2T with low poo
Co-wash - Suave Nats. clar. or coco.
RO - GVPCB, Ion Eff. Care, TN.
LI - SMR, Cure Care, or RO
Seal - MO or Jojoba
DT - + honey, ACV, & EVOO to SM masque & GVPCB
PT - Gelatin!, CNPF
Styling - FSG, AIF, BRHG, LALS/PS, GF curl spray gel, SM Souffle/Smoothie, LOOB
Oils - MO!, EVOO, jojoba, GSO, SM Elixer, EVCO, VO5 Hairdressing