When to harvest? how can i tell if i dont have scope?

I bought a scope and most are cloudy and some are clear.

Buy a scope. You'd play a guessing game after months of work to save $10? If you've got Prime, nothing should change significantly before it arrives. The harvest window is wide enough that two days won't ruin anything.

@Smokedogg16 An experienced 25+year grower told me to shine a torch light or camera flash on the buds , Clear trichomes will shine back at you like little diamonds dont harvest until this doesnt happen anymore IDK he seems to know his shit grows some huge plants could be worth a try mate

Unfortunately without a scope it is a guessing game. You can watch your pistils and harvest when they are about 90% brown but this isn't as accurate as a scope. Sometimes the pistils will be brown and the trichomes not ready. And vice versa. If the trichomes are really fat sometimes you can shine a really bright white light on the buds and you can see the clear and amber glisten in the light. So you can get a good estimate from that. Congrats on the upcoming harvest. Those are some nice looking buds!