First Grow - Blueberry Muffins

Learning about trichomes more and more after getting a 60x microscope phone attachment from the local grow store. Colas are looking beautiful and frosty. Trichomes are starting to change color to light amber here and there but most are cloudy. Began feeding her again after a fellow medical grower stated that I should feed all the way until harvest... Getting mixed information about flushing, 48 hours of darkness, trichome looks for harvest, etc... So much information at this point as I get closer to harvest...