Hi timmy350is welcome to Fish Lore
It can take up to a month to cycle a tank. Just keep up the water changes, you might want to step it up to 50% and use Prime as your water conditioner. Prime will detoxify the ammonia but still make it available for bacteria.
Keep testing and make a log of your readings.
Here's a basic explanation of the nitrogen cycle:
First your ammonia (from fish waste and left over food) will rise.
In a few weeks you'll see the nitrite levels rise and the ammonia levels start to drop.
After a few more weeks you'll see the nitrate levels rise and the nitrite levels drop.
Ammonia and nitrites are toxic to your fish. So until your cycle is complete, you need to keep the levels down with daily water changes
When you having readings of 0 on both ammonia and nitrites with some nitrates showing, your cycle is done.
Hope this helped.
Good luck.