Get Bosley.
approximately half an inch a month
If you want to groe your hair quick, then I only know of one way: Water.. I know it sounds weird.. but it works. Trust me!
dont cut it and use shampoo and conditioner for long hair growth
NO
Yes, biotin can help hair grow quickly. Especially if it's taken along with protein and Vitamin B.
Nothing that you can put on from the outside will make your hair grow thicker. (With the possible exception of Minoxidil.)
possibly
No, thats not possible.
no
There is no other way then the natural one. You just have to wait.
It's possible, you can buy a certain medicine that can make you grow hair.