Organize & Reconcile Xero Books

My books need a thorough one-time clean-up so I can confidently take over the day-to-day bookkeeping myself. At the moment invoices, receipts, bank statements, and expense reports are partially entered in Xero and partially sitting in folders; nothing ties together neatly... (Budget: $400 - $500 AUD, Jobs: Accounting, Bank Reconciliation, Bookkeeping, Data Entry, Financial Analysis, Financial Consulting, Xero)