Sinky, This may sound cruel but, if you use your plants for a toilet, shouldn't you kind of expect them to look like shit? I don't think you are going to find any experienced grower here that recommends using urine on your plants. You really should start reading up on nutrients and put your plants on a decent diet.
I'm not a dirt farmer, so I can't tell you how to fix your current problems, but, regardless of the medium you are using, you need to get a better grip on growing techniques. The actual experience you are getting now is by far your best teacher, but you should also read, read, read and learn as much as you can - anyway, the reading all makes a lot more sense when you combine it with hands-on experience.
As far as this post being in the wrong section, I'll get it moved for you. If you can't find it here, look in "Plant Problems".
Good luck with your grow.
Never argue with an idiot - they drag you down to their level then beat you with experience.
All of this is just pretend. But if I grew marijuana, it would be in strict compliance with California Law, SB420.
Live wild - it's too late to die young.
"Let the old men who make the wars, fight the wars."