I'm here to help you change your account information in QuickBooks Online (QBO), Maraiyna7.
If you need to make some updates to your email address or password, you can make changes from your Intuit Account Manager. To get there, you may sign in directly while using QBO. Here's how:
Click your profile next to the Gear icon.
Select Manage your Intuit Account.
Go to the Sign in & Security menu.
Click the User ID, Email address, or Password section.