I think the Shea Moisture is maybe not right for your hair. It may be building up and causing issues.Are you in the US? Sally Beauty GVP conditioning balm is like an allergy diet for hair. Conditioner without oil or silicone or much protein just smoothing.
My kid with bleached hair loves AG Sleeek as a leave in, it does have some silicone. She also does sometimes Olaplex.
The one with fine but nonporous hair loves the Innersense Hydrating Hairbath. You might be good with that shampoo, a little conditioner left in, and something for hold, I would say a light gel rather than mousse as even I find mousse drying. Kinky Curly Custard or (again Sally Beauty) Biotera "alcohol free gel with bamboo" quite a mouthful of a name but it's cheap as heck and very good. Or Garnier Fructis gel cream, that one is light hold and moisturizing.
Editing to add, since you rinse it every morning, have you considered doing a water only routine? What happens if you just don't wash it at the end of the week? I've known 2 people in real life who do that, both had very fine hair around 3a in curl type.