Re: "My purchases from apple pick up right away when im only trying to pay one thing at a time because now apple requires your apple ID password to update/pay for purchases how can i take that off or change it."
Seems you can only change the password requirement for free (not paid) items ... there are some things you can change though, (eg: you may want to try using Face ID or touch ID, or only enter a password once every 15 minutes when making purchases, etc..)
Apple Support's article below has all the details of what's possible.
Require a password for purchases in the App Store and other Apple services - Apple Support
Eg: says:
"You can require a password for every purchase or require a password every 15 minutes.
You can choose how often you want to enter your password when you buy items (including in-app purchases) from the App Store and other Apple services:" ( Much more info. in the linked article itself )
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If needed: More info.about settings:
See how to: Manage App Store purchases, settings, and restrictions on iPhone - Apple Support