The test look good
Except for the high nitrates .
I have read 20ppm is ok for fish only but closer to 0 is advisable .
Have you done a water change since you finished the cycle ?
It takes a few partial water changes to bring the nitrates down .
I was recommended to do a large water change 50%
Then keep a eye on nitrates .
There was somewhere on here I read how much water you have to change to bring the nitrates down by 10ppm
A new tank parameters will jump but become more stable as it matures .
Be patient .