Can I give staff access without sharing my entire account?

You don't share your password, but create a separate staff account with its own login. When adding staff, you choose which properties and permissions the staff member receives, for example viewing consumption and balance only, without access to payouts or settings. Your main account with finances and other properties remains protected, and you can adjust or revoke access at any time. If you have just one property and handle everything yourself, this makes little sense.