My plant is not happy

Check PH—- suspect its leading to the deficiency. Clearly you have a full deficiency all around NPK—- suspect it’s the PH not allowing the proper uptake.

Are you using RO water ? In that case add some calmag. Good Luck 💪

Ph swings ??? But there is many more. All plant looks strange, or just quality of photo You had nitrogen toxicity and overwatering ??? And later stoped all nutes and started to water less, too little ??? My guess from 2 photos I see pink stems, overdried medium, clwaing leaves and marks from excess of N , thats why i do assumption

It's a sign of phosporus deficiency, and little nitrogen too. Add npk like 3-4-6 and she will be fine :)