Do you have a loupe? It really helps to view the trichomes. There's plenty for you to read about harvesting at various stages of development. And you don't need to spend a bunch of money...the plastic, lighted one's work pretty good.

I believe that no plant is ready inside of 10 weeks, and that's just a minimum number. Get a loupe, but also watch your plant. Does your plant look like Fall?

The pic is too close for me to tell. The sun can do weird things to tric development if it’s outside. Sometimes making it look done before it actually is. The trichomes on the outer part of leaves will turn first before anything closer to the center.