To achieve a great hair style start by using a good shampoo and conditioner that is targeted to your hair type. If you have flat hair, use a volumizing shampoo, for frizzy hair use a frizz control shampoo, etc.
After you have washed your hair, towel dry the excess water. Try to remove as much excess water as possible so that you will decrease your blow drying time.
Apply either a good leave in conditioner, anti frizz serum. or split end mender to help control the dryness, frizz, breakage.
Use a round brush when blow drying. Separate your hair into sections and using the round brush blow dry from roots to ends. Keep the blow dryer a fair distance so that it will still dry your hair but not directly on the hair to cause damage.
If you are curling the ends, keep the ends wrapped around the brush while drying in the direct that you want the curls. For smaller curls uses a smaller round brush and for larger curls, yes, a larger round brush.
If you flat iron your hair try the same blow drying method but do not focus on curling the end of your hair. When flat ironing, make sure you are using a clean ceramic flat iron as those are the least damaging. Flat iron only the parts that need it, so if your hair is naturally pretty straight only run the flat iron on the ends and over the top layer of hair. If your hair is curly of frizzy separate hair into sections and start flat ironing the bottom sections first working your way to the top.
To finish your style use a finishing spray that adds shine, this will make your hair look divinely healthy.