Drooping as the day progresses. Need some opinions please.

I had a few questions, are you feeding anything beyond the FFOF?

After thinking about it, you’re probably fine. The pic doesn’t seem too bad. Make sure your watering cycle is wet and dry and wet, otherwise don’t worry too much. It’s too easy and common to overthink, overdo and overcompensate!

I fed them twice with House-Garden : "roots excelurator" and "amino treatment". A quarter dosage of the recommended amount each time. I eventually decided its best to just wait until they show signs of deficiency. Being so new to all of this, I couldn't tell if the nutrients were actually benefiting the plant.

Your runoff around 35 days (5 weeks veg): I would think a runoff of 750 isn’t too bad, I wouldn’t worry about that. I don’t use Fox Farm Ocean Forest so I can’t extend any experience to any slow release nutrients it may have.

Transplanting tips (realized after writing this you had already transplanted): set out a sheet or garbage bag to catch soil that will fly everywhere. Put your pots, scoops, water on the sheet. Fill new pot up about 50% of the way up. Keep extra medium nearby. Lift plant and invert slightly above new pot. Let some old soil fall down and coat your new soil and loosen the root ball. Get a friend to help if it’s a large pot and you didn’t eat your spinach. I like to gently pat and prod the root ball to initially loosen it, and then coach/tickle some roots free of others. I don’t overdo this stage or break many roots if I can help. Just need to loosen. Then set the plant in and fill in the sides and top of your container, with as much as the pot will hold (about an inch from the top is best to avoid spillage during watering). I like to water my transplants in, with two drinks about 5 minutes apart, just enough to saturate the pot without runoff.

Is it bad to not water after transplanting? And she seemed to perk back up by the next day. I'm sure she's still recovering but how long should I let her rest before I kick her into flower? I'm keeping my fingers crossed that its a female.. The calyx's seem pointy but they're no visible pistils.

You what to start with moist soil or water in the roots. Dry soil and roots is no good for very long. At transplant, you want to minimize root damage, stress and osmotic imbalances including dry soil. After the roots are hardened to the new location (1-2 days) you can continue the regular wet and dry cycle to promote root growth.

The pointy pieces by the nodes are stipules, and they are different from the reproductive parts of the plant.

Search 3-5 nodes up from the dirt on a mature plant, for single female flower.

I'm pretty sure i'm refering to the primordia/sex organ. They're very tiny and I see them on the nodes behind the stipules. I'm hoping the pistils just need time to develop...either that or I've been staring at testicles this whole time.