1st timer

You can defoliate an auto, but be careful, dont take too much, and yes do it over a period of time, you shoud be fine. But there is always a risk, worked great with my last 2 grows thoug. Best of luck and happy growing 🙂🙏

Yes use bloom nutes asap. Your plant is already at least 2 weeks into flower from what I can tell.

start flushing now to release the toxins from the soil and to give you clean bud, you can flush using water for the next 2-3 weeks, during the last week add ice water istead and watch your trichomes explode and cover everything , great job and happy soon to be harvest