I just browesd through. Looking great for your first try. A couple things for ya, dont worry about ph in soil so much. If your ph is way outta whack then maybe from the tap but really the soils ph is really hard to change anyway so fooogetaboutit. Also for your yield, a half pound is realistic but id expect 100-150 grams and be very happy with anything more. Think about it, thats an oz a plant. For your first grow thats great. The guy who said expect a ten week harvest.....meh. Get yourself a cheap 40x magnafiying glass for watching the tricombes with from amazon and pay attention to those starting at week six of flower. Those little balls are your doneness meter. Most strains i find are done around week eight to week nine.
All in all, really nice job for your first try man, keep up the good work.