First grow

Buds are stacking on nicely. They are pretty frosty as well. They don't seem especially large, but i have no idea what to expect and not sure how much more they will grow. Lots of stuff i do not know. Should i harvest the top parts first then let the lower parts keep going? I am kinda assuming i will do most of the harvest at the same time, just so i can use the tent to dry in. Currently on day 30ish of flowering, and the apple blossom has a supposed 45 day flower. The gorilla zkittles said it was a 60 day flower i believe. Not exactly sure when i am supposed to harvest. I think i still have a little ways to go. The pistils have started to turn brown/non white, but only a little bit. I am kinda expecting the leaves to wither eventually, but it seems like it's still going strong so i prob have another week or 2 of flowering to go. I have a microscope to inspect the trichs, but it is really tough to get clear pics. I think my light was a little too close to the top of my bigger AB and the GZ. I thought at first it was just lots of trichomes, but it definitely looks a little yellowed on top of the buds compared to the AB that isnt as tall/close to the light. I raised the lights so hopefully they are less stressed. Tent smells really good, and i think it might be just barely leaking out. The air coming out my fan smells really faintly of weed. I think the numbering of the days is messed up and how i am keeping track on here is confusing me. I am going to switch to number of days in flowering moving forward. I also have a few extra days in this week. The first few days in this one should go in the previous week.