In 2010 I had gorgeous healthy thick brown hair. By 2011 I dyed my hair platinum blonde. My hair was cut short and I then got micro-link extensions. I continued to have bleach applied to my roots throughout the year. Before I knew my once beautiful hair was all gone. Now I am so fed up with it. I just cut my hair into a pixie. I want my old healthy thick long back. What do I do? Will it ever grow back?