Issue streching

Anthocyanins can appear when plants are under a shortage of nitrogen. Unless you have been trying to give them cold, it's a little too early for such isolated pockets of purple. I'd lean more to a starvation of sorts, given your buds look flaky and underdeveloped. Your plants are at a critical stage of development, even if feeding resumed, it may be too late to get a decent yield. Tips showing what I'd expect from a very salty medium, very close to bad burning. See lots of red/purple stems too. Purple stems, phosphorus deficiency, and this deficiency is often linked to a lack of oxygen in the root zone as its root cause. One can only become as good as they are willing to learn, how good you grow is determined by how much energy/time you dedicate to gathering knowledge and then applying it. You are asking a question only you can answer. Best o luck.

Ca,P,K problem, prbly not enough light, more likely they overfed bs they so tiny... flush and feed anew, read about pruning and lst 😂👇

Too much going on here to list them all accurately, if I say she's has a bit of everything I wouldn't be far wrong, sorry for the bad news. Doesn't look good