Do check out the stickies on the newbies board and this one. learn about the Curly Girl method. Definitely stop brushing and combing your hair out - that separates the hairs into individual strands (ie. frizz).

If you have been flat ironing and relaxing your hair is probably fairly damaged, that will make hair frizz and be difficult to control. It may be you would do best with a good haircut instead of fighting fried hair. You likely have six inches or so of hair that has not been relaxed.

Proven beneficial ingredients for damaged hair include coconut oil, hydrolysed protein, ceramides, 18-MEA and panthenol.
2a-2c, medium texture, porous/ colour treated. Three years CG. Past bra strap length heading for waist.

CO-wash: Inecto coconut/ Elvive Volume Collagen
Treatments: Komaza Care Matani, coconut/ sweet almond/ fractionated coconut oils, Hairveda Sitrinillah
Leave in: Fructis Sleek & Shine (old), Gliss Ultimate Volume, various Elvive
Styler: Umberto Giannini jelly, Au Naturale styling gelee
Flour sack towel, pixie diffuse or air dry.
Experimenting with: benign neglect