I know my hair needs protein if my curls are falling limp. I don't think I've ever over-protein'ed my hair. If your hair feels dry after using protein, then you don't need it. However, using protein over buildup leaves me feeling dry-ish.
2c-3a - coarse - normal-high porosity - high density - growing out to donate

NP/LP: KMF Whenever Conditioner/ YTCucs
RO/LI: Sevi Pumpkin Seed DC / CJ Argan & Olive Oil, KCKT, YTBbs
DT: Coconut Oil + scalp massage
OIL/STYLER: SM Elixir / KCCC
COLOR: henna, amla & indigo