My 2cents...theres no way in hell id think about chopping that plant down firstly, no way. Ive seen way worse looking plants make it and the bud will continue to get better for the next 20 days. If the leaves are going soft id pull those off. Frick ive seen plants with no leaves left have budz swelling till chop. Are you giving it 18 mls a gallon of calmag? That sounds high. I do a drop a litre. Maybe a couple of drops a gallon of superthrive once couldnt hurt, ive heard that its great at bringing plants back around by stimulating roots. I know yours are fine, white is right, but it might make her drink some more. My 2cents. Good luck.