Not sure about how much you are watering. I am a novice myself but what I did was cut a finger sized hole in the bottom of my containers so I can stick my pinky in and make sure I am not over watering.
From everything I have read so far and experienced first hand; get a water testing kit. Keep your PH as constant as possible to prevent nute lock up. I have a water softener in front of my well, I was adding sodium to my plants and hammering them. Now I am straight from the ground and adjust my PH as needed. As well, any time released fert's/soil is a real killer! Stay away from that MG type stuff. Some people claim success (awesome on them), most of battle with it.
Also, be patient. This plant is amazing at how it responds, but if you like me and a first timer, it gets REAL easy to get hooked on every yellow leaf or any little droop. Yeah, the plants are telling us things, but on their own terms. Give it time to let the story un-fold and take lots of good, crisp pics. People here will READILY help you out if they have good, concise info. "One night more" will not kill this plant. It is a weed after all..
Trust me, I have put a few plants through hell already, and believe it or not, they rebounded WELL...
Check my attached pic. That plant (which is now dead, sorry male plant), was on the brink quite a few times. It started in MG, got transplanted a couple times, flushed a couple times (hell, I fell on it once hanging mylar!)...this is a hearty plant if you don't take TOO much care of it...
And now, this n00b goes back to the corner to read more (and take care of a minor light leak..grrrr...)