Every time I start to set up Apple Cash it says I can’t set it up right now, how do I fix that?

The Related Article above your name on this page, that you were reading just before you posted here, has guidance about your question. If the Related Article doesn't provide sufficient information please post back with more details about the issue and another user in this user-to-user forum will try to help. Do you meet ALL of the requirements for Apple Cash (from that link):

• Be at least 18 years old and live in the United States.
• Have a compatible device with the latest iOS, iPadOS, or watchOS.
• Set up two-factor authentication for your Apple ID. 
• Sign in to iCloud with the same Apple ID on any device that you want to use to send or receive money.
• Add an eligible debit card in the Wallet app, so you can send money.