Hang in there, my curly sister!
Yes, we all have days/periods when we feel like this. And this summer has been an odd one for hair - at least for mine!
Couple questions - what techniques do you use? Sometimes that makes more difference than the product. Do you clarify? It could be build up. Do you DT after your PT's? Could be a moisture/protein imbalance.
I have found for me that if my curl is dropping at the end of the day it's either because of humidity, or because of lack of moisture retention. So really, it's because I'm on one of the extremes of the moisture scale - too much or too little!
Of course I'm porous, so that is a big contributor of those issues. Not sure if that applies to you! But the solutions I have found are regular DT's and PT's, clarifying on occasion (typically before a PT/DT), and sealing - often with mineral oil. I also use EVCO at night sometimes, and I will pre-condition before washing. (even before co-washing.)
You have BEAUTIFUL curls! But I know what you mean - getting them to be consistent is a challenge! At least you know they are in there!!
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