Thoughts? I don’t want to accidentally kill her... is it nute excess? Overwatering?... week 9-10 Strawberry pie

i would stop feed any nitrogen in flower, i would also recommend a good flower booster with no nitrogen, like beastie bloomz by foxfarm it has 0-50-30 and it will def. make your buds bigger. when plants are in flower they are using any nitrogen they had left from veg, in return your fan leaves will turn yellow and die off. during flower the plant has enough stored nitrogen to keep going until the end of the plants cycle. sometimes nutrients and the plant do not go well. it is usually a picky eater where even if you have more of the same strain, and 2 out of 3 look great but then sometimes there is that one where her color ius off or her buds are smaller. this just happens from time to time in a lot of strains that have not been stabilized by the breeder, it does not mean they are bad genetics it just means the breeder is still working on getting all the kinks out, this usually happens when the seeds are f3 and later. this is nothing to be worried about and you were right about asking. i am sure your harvested bud will be fire even if it was a bit different than the others in the grow. hope this helps