Is my fishless cycle done?

I've only been cycling for a couple weeks, but it seems like my Ammonia is being cycled through within 24 hours already. My Nitrates continue to rise, but Nitrites never even showed up. My pH is also very high.

I'm a bit at a loss of what to do. Should I continue to add the Ammonia until Nitrites show up (if they ever do) or is my tank ready for fish? Once I do a water change will the pH go down? I'll be adding plants, but right now the pH is too high for them (or the fish) to be comfortable.

Also, just in case it's important, my tank was seeded from one of mine that was already established. The material is "special" I suppose you could say, designed very specifically for growing bacteria, unlike the regular fabric-like media. Maybe there was enough bacteria on it to turn Nitrites to Nitrates instantly?