How do I get long health and shiny hair in just a few days?

Growing out your hair takes more than just a few days, unless you want hair extensions.
If you want long, shiny hair, overtime, you're going to have to keep the ends trimmed, and keep your hair away from any chemicals,( like hair dye, and perm, )and heat,( like curling irons and flatening irons)- these things will dull hair color and shine.