My hair is fine/low porosity. In the winter, it needs more moisture (layering of products) and protein. I put products in soaking wet hair, use curl towels to scrunch out the water before I diffuse. I don't touch my hair with the dryer (or my hands) while diffusing. Other then putting in my part and clipping the front out of my eyes, I leave it alone for a few hours until it's dry. Then, I scrunch--if necessary.

Other thing is to be careful with the products. My hair doesn't like chemicals. I stay away from most, especially polyquats. They coat my hair and cause frizz. They also make it so other products don't absorb.
3a (Corkicelli), highlighted, fine, low porosity

HGs: Anything Sevi; Curly Kinks Satin Roots, Curlycue ReNew and Coil Jam; homemade FSG and okra gel; soap bars; UFD Curly Magic; Botanical Spirits Jellies, CJ Repair Me, Aloe Fix