I'm new at this too. But I believe that you need to check the trichs for color....clear, cloudy, amber for the high or buzz you want.
My Strawberry Cough's hairs are almost all reddish, but the trichs are still almost all clear. I'm flushing now and will check the trichs and harvest when they're mostly cloudy.
I got a 60x-100x illuminated handheld microscope from Radio Shack for $9.95. Amazing what you can see. Just like the trichnome pictures, but better; it's your plant.
Good luck and be patient. You've waited and worked this long.