Ok next time Maybe more careful with nutrients, perhaps half. Let the plant get a few sets on it before you switch to 12/12 and get a moisture meter or do what my old man taught me and use your finger and stick it in the soil, if it's moist like cake leave it alone if its dry water it, also it never hurts to let the plant tell you when to water, slightly droopy leaves says it's time to water them and it also makes the root structure stronger because they are expanding and searching for water and nutes.
Dude that's ok for a first grow, I had more success on my first but my second one was a disaster. Truth is of all the advise you can get love them a bit less and keep it simple. We tend to love them to death when we start out, and they get all burned and messed up because of over feeding and over watering. Less is more in my opinion. Good luck on your next grow.