On most MJ plants...
Hairs will recede... white/red/brown... when plant is almost ready, most hairs will recede...[where they go?] Calyxes will become swollen [where you see the two hairs come out of what looks like a seed]...it looks like a seed will pop out, any second...
Trichromes will almost all be milky/cloudy [90+%]
A Few will be clear, most MJ plants keep making Tric's and so it's inevedable your plant will be harvested with some clear [around 5% or less]...
Amber Trics = degraded THC...
Full potency ? Harvest when this above happens...
So, when you see amber.... Pull it...dry it...cure it...smoke it...
Good Luck man... It will be worth the wait...