reoccurring charges that I don't know what it's for

See: How to cancel a subscription from Apple - Apple Support

Another possibility is upgraded iCloud storage: Downgrade or cancel your iCloud storage plan - Apple Support

If that doesn’t help, note that this is primarily a user-to-user support forum; other Apple users like you. We don't have access to information about charges to your account. See each of the steps in the following instructions. They include information on contacting Apple Support if the other steps don't help: If you see 'apple.com/bill' on your billing statement - Apple Support