Bro, don't delete the question, I just modified the photo to try to find the cause, I don't see anything wrong with that, you yourself told me that it wasn't clear with the previous picture.
I really appreciate it,
I just wanted to be sure that it’s a potassium deficiency.
Today I watered only with water, for the next watering I plan to use fertilizers at low doses so I don't block the roots. She looks good, seems to be feeding normally, aside from the issue with the old leaves, she seems to be doing well.
As for my mindset, it’s perfect, a bit elevated but good🚀😁☝️🏽
Good vibes!!