I started coloring my hair a couple of years ago, at the time I had annoyingly thick hair, but over the years its become really fine and thin. Will it ever thicken up again? (Ive been dying it ever since) Anything that helps with it? Would growing it out (the coloring) help at all?

It be better to use a volume shampoo to give volume to your hair or else shampoo for thinning hair, treatments do help also, if you use a semi-permanent colour sometimes your hair f eels better.