Hi Lynx Fence,
You have done things correctly so far. In Adagio Ledger 90A, you create the next fiscal year before having to close the current fiscal year. This gives you the flexibility of working with next years transactions at the same time as completing the current year, without a concrete dividing line for processing.
When you are satisfied that all of the current year transactions are complete, you can then close the income statement accounts to retained earnings. And after that, officially close the year.
There is a checklist available from our website
here that lists all of the steps in a Ledger 90A year end.