Jumping in late here, but I wanted to add to the "please don't relax your hair" party!
Your waves/curls are lovely.
If you are determined to relax, I'd suggest a keratin treatment instead.
But my REAL suggestion is to just flat iron - and do so less often. Maybe keep it to once or twice a week, at most?
It's your hair, so by all means do what you like. But I think your hair is lovely, and maybe you just need the right routine and products to keep the frizz at bay.
I think you'll find the less heat damage, the less trouble you'll have in humidity.
Just my 2 cents.
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