The phosphate is 10 times what you want. The nitrate is ok, but would be better a little lower. The rest looks spot on.
If they're not rising, that's a good sign. Water changes will then bring them down, and the tank should maintain itself. Water changes may then be optional (lots od debate over where you should/shouldn't if nitrate is in check).
Carbon is optional. Again, there's debate over whether you should run it all the time, every so often, or only when there's an issue.
Re. water changes and carbon, do a search on here and you'll find a few threads discussing this. Jump in with any questions you have.