Have patience. With a new filter crammed full of colonized biomedia, it can take 2 to 10 days for completion. Usually closer to 3 or 4 days. With just a few rocks for seeding, I would think that you are in for at least 2 or 3 weeks till you are fish ready, and it would not be unheard of to take longer. Hopefully, you will be on the shorter side.
Remember that next time, you can buy your new tanks filter in advance, and run it on the established tank for 2 weeks or so to colonize it. In fact, you could still do this, since you don't have fish in your tank, and colonizing the new filter and fishless ammonia will take about the same amount of time. Or you can set it up when you have a whole bunch of colonized material from the established tank's filter to put in it. If you run it on an established tank, or cram it full of colonized material, you can skip the whole ammonia bottle thing and just go right to a few fish, since the ammonia or nitrite spikes will be low and short lived. Last time I did this with the new filter crammed full of biomedia from another tank, I had 2 or three days of 0.25 ammonia, never saw any nitrite. I have heard of others not seeing ammonia, and having two or three days of 0.25 nitrite. In theory you could go right to full stock, but it is safer to start with just a few and build up gradually.