I can see some of the tips are burned on your plant so that tells me there's LOTS left in the medium to use . I wouldn't feed her anymore nutrients . I would just get ready to give her a good flushing and then harvest . You wanna flush because you want your flowers to taste clean and not full of chemicals . I hope you find this information helpful on your quest to the finish line ! Keep up the great work ! Good luck on your future grow's . -Happy Growing!
You already mention that there are signs of excess nutrients and at this stage I would let the plant consume whatever's left on the soil and on its own leaves. I would just give it water from now on.