keep humidity below 50 % to prevent mold. use a dehumidifier. keep temps to 75, night time can be cooler but watch rh.
keep your co2 going, (the plant will grow to its weakest resource, which one you skipping?) your grow style, your room, your habits, your feeding schedule, types of nutrients, light quality, water quality, air quality...those come to mind when making grade a buds, but they need all of that all their life, not in the last half of flowering stage. if your buds arent already sticky you missed some of these resources, or your genetics might play too. mine stick to my garden clothes as I walk by a month into flower. best to check out a grow book follow those instructions, they are really good in my experience. no tricks. the plant already knows just what to do, you have to provide the environment for her to do it.