Wash your hair right. When you wash your hair only shampoo your scalp not the ends. Then put conditioner from mid-length to ends.
Use argan oil. Not shimmering sprays. Argan oil will make your hair shine and will improves it's texture.
Massage your scalp with vitamin E. Take a dozen capsules and snip them open into a bowl. Massage your scalp pre-shampoo (yes the texture is a little sticky but worth it!!).
Overnight masks are great for your hair. Coconut oil is a big favorite. Massage it from roots to ends, braid it to not have oil on your face. In the morning shampoo it out, but skip the conditioner!
Cut your hair regularly. Even if you want it long, trimming the old ends is always good for the growth.
Avoid styling your hair with heat as much as possible. Try using steam rollers which are gentler on the hair. If you have to use flat irons or dryers, put a heat protectant on your hair before.