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 - med-coarse - normal-high porosity - high density

NP/LP: CJ Daily Fix, KMF Whenever Cond./ Giovanni TTTT
RO/LI: CJ Argan & Olive Oil, JC Too Shea / Aussie Moist
DT: Coconut Oil + scalp massage
OIL/STYLER: JC Rockin' Ringlets, SS Curl Enhancing Jelly, KCCC
COLOR: henna, amla & indigo
: glycerin in high/low dews, polyquats, parabens