Setting up Team and KeyChain

I have been watching the videos for beginners building apps on XCode so I can develop my own apps. However I have an issue when trying to run a preview of my app. It asked me to set up a team to do this so I set this up however when I try to run the preview now it asks for a keychain password however I was not asked to set this up when setting up a team. Could someone help or guide me to a video you for setting a team/keychain up or alternatively would you be able to provide help for this?

Thanks

Welcome to the community!
You can create a FREE Apple developer account with an Apple account

Create that and add it to Xcode in preferences (under accounts)

For keychain type in your computer password and make sure to click “always allow”