anyother question why are my white hairs (pistils) turing amber?
That's just what they do. It's ok.
As for the size of the cola, it's a hard question. Judging from that nasty light burn 8 inches from the top, you're using HID lighting. I would expect it to fill in more than that, but there are some other contributing factors and information we are lacking. Anyways, I think whoever said you have a month left was probably pretty close. Let it work, squeeze it every day and talk nice to it. Love it, and it shall love you in return.