How can I get healthy hair and grow it?

My hair is the same way. Just keep getting it trimmed every 6-10 weeks or so, hopefully after a few cuts all the dye will be cut out of your hair. Wash it every other day only. When you wash it every day, it washes out your hair's natural oils and it dries out your hair. If you wash it every other day, your hair will keep most of it's natural oils restored. Also, try to stay away from junk food, sodas, and smoking cigarettes. (If you do.) Anything you take into your body shows in your hair. Keep your body healthy and your hair will stay healthy!