1- use deep conditioner once a week to keep your hair moisturized and healthy
2- do trim your hair, or cut the dead ends; the split ends could be the reason of your frizzy hair, it makes a huge difference!
3- your final rinse in the shower should be in cool water.
4- reduce the heat and chemicals as much as you can
5- use heavy products like gels and styling creams to control the frizz
6- use the shampoo once or twice a week only to avoid dryness. (dryness=frizz)
7- use apple cider vinegar rinse, it also helps with frizz and cleans the scalp of any buildup (ACV rinse: add 2 Tbsp Acv to a cup of water) add it to your hair then massage your scalp for 3-5 minutes then rinse it off with water followed by your favorite conditioner.