I fed now worst please help

Your plant foliage is still too dark green (it should be light green), meaning too much nitrogen, which is either too much grow nutrients or the soil has too much fertilizer. Seeing the leaves break is a dead give-away of too much nutrients, which makes them brittle. Why did you think it needed a feeding? I see no signs of deficiency. It's like this: if there is no sign of deficiency, then there is no need to start feeding.