About trichomes. Just white, no amber :/

Definitely would wait another week or two, but you can do a 24-48 dark period at the end that can really accelerate the ripening process.

You still have another 10-14 days to go........be patient. Stop feeding and just give plain water in normal amounts and at normal intervals and harvest in about 10 days, roughly.

Hey, your plant is foxtailing, which means its gonna continue to stack fresh calyxes over each other in the new growth. This makes it hard to tell the right harvest time, as you will most likely see fresh grown calyxes which are not as fertile as the bud below it. I would say your plant is probably ready to harvest, but it depends on personal preference so only you can tell how ripe you like it. My advise is to cut off the edge of a smaller bud and check the inside of it for the trichomes, thats gonna give you a more accurate view on ripeness.