You see what you have gotten from your current level of commitment. If you are not willing to put any more effort into your project than what you are now, then you will most likely never get any better results. There is no excuse for not knowing your PH. A PH kit at walmart cost less than the change I have in my couch. If your PH is off it can easily lock out some nutes, possibly the ones the plant needs for trich production.
Bottom line is you have to have some things in check before you can expect any results worth your time, otherwise you might as well take the money your spending and buy it from someone else.
It would be pretty easy to find the info you need to find out whats best for your set up. You need to control...
Temps
Food (ph, schedule)
air flow
humidity
lighting
You might want to add some blue spec compact florescent lights to your set up. The blue spec is mostly used for veg cycle, but in bud they can also help bring out the crystals. There is also a product called snow storm ultra that brings out the trichs, it works like a charm for me.