A Trial Balance is a complete list of your accounts that also shows each account's balance. Traditional systems require them, but they are not strictly necessary in open systems such as Accountz. However, if you use an accountant or bookkeeper, they may ask you for one. In which case:
Open all the accounts in the Chart of Accounts so you can see every account.
Set the End Date in the Chart of Accounts to your financial year end date, (leave the Start Date disabled and 'Include Year Closing Transfers' should be ticked).
The Balance Sheet represents the financial state of your business as it was on a specific date. That is, how much money there is in the bank, how much the business owes, how much is owed to the business, how much equity there is in the business, (ie. how much is owed to the owners of the business), and how much profit or loss the business has made for the current period, up to the date of the report. As is often said, it is a snapshot of your business at a certain point in time.
You can make as simple, or as detailed, a balance sheet as you need by opening or closing different groups in the Chart of Accounts.
At the very simplest level, you could show just the Assets, Liabilities and Equity groups, (ie. close all sub-groups within each of the main groups). You can prove that the balance sheet actually balances by applying the standard accounting equation:
Assets = Liabilities + Equity
A more detailed, (and typical), balance sheet will show the current asset and liability accounts in full, but only the overall Profit and Loss account balance, (the Profit and Loss account report will show the detailed view), together with the other Equity accounts.
What matters is that you have complete control over the level of detail of the report.
To view the report, set the End Date in the Chart of Accounts to your financial year end date.