Let us start by thinking of 'no man or women is created equal', we are all different from the root of our hair to the tip of our toes. If you see one person doing something and it works most likely you have to make it work in a way for you. With that said learn to create your hair care regimen, do what works for 'your' hair. Your first hint needs to be what your hair is telling you; it knows what it needs so listen. Whenever your hair is dry for example, you will see the dull look. If your scalp is dirty or dry, it will scratch and irritate you. Simple little things that if you pay attention to will make all the difference in the health of your hair. Listen is key to anything really, listen and learn and put what you have learned into action. No matter what the result you see, what changes it has brought to someone else's hair care that does not mean it will work for your hair. When it comes to a regimen for your hair nothing is more harmful than going with what others say, learn the proper care routines and adjust them to what your hair likes and thrives off on.
There is a lot of great advice base on what products to use, how they affect your hair, and how to take care of it. Most individuals do look for help from others so they will have somewhere to start but make sure you see how your hair is reacting to it. Most people start out experimenting what others with success have tried, and products also. You can try anything you would like and test it for a period but have a before and after a period.
Try your products and regimen for about a month or three, look to see if it has to improve or damage yourhair. The difference will show, make sure you see how your hair reacts and if it grows or not. Always look if your hair is shedding or breaking along with the feeling of your hair altogether.