Not bad for your first grow, one thing you should have been doing is feeding your simple nutrients throughout the grow, not urine haha. One thing I have learned with outdoor grows in the ground like this is that you don't have to pay attention to ph really at all and adding Epsom salts every now and then a helps a bunch. You want to start feeding flower nutrients slowly and work up the strength. Roots are the most important part to a big healthy plant, so I use root stimulators every so often. For me, I just feed every now and then and let them do there thing and I'll get about a half pound per plant at least. I grow for personal consumption and what I do works great for me so I don't need the strongest bud in the world, just some decent stinky weed and I'm happy
good luck!!