Help me Newbie here!

Hey I’m new here I have a bag seed that’s been preforming fairly well for my first time growing anything but I’ve come across some yellow bro leaves on the bottoms ones shown. Also slight curl down on the new leaves. She just went into flowering so idk what’s wrong with it. I have used neem oil for bugs. Everything is organic soil, feed everything.

is it just the one leaf that has touched the wet soil at some point?

How is the oh in the discolored plants. Looks like a mixture of nutrient burn and calcium deprived.

I just recently got it the right nutes (I’m super new at it so I just found out 3 weeks ago and just got the cal mag a week ago. The new leaves look nice and green. But the order leaves still look bad are they gonna die off or should I trim them.
my main concern is some of the new leaves tips are curling down and looking kinda burnt so idk what’s causing that or what to do in that.