Hi there, tmayra18.
I have some information that'll help. The video that will assist in how to do a reconcile is located here, How to Reconcile Your Accounts in QuickBooks. We also have a great deal of information located throughout our support articles. We have articles that will teach you more in-depth about Reconciling with QuickBooks Online.
I'm here to help, within the QuickBooks Community. If you have any questions or even want an article to assist, let me know.