Help with member privacy

Hello,

I would like to create a site for members of an association. To be associated, you have to pay monthly.

In this site, I wanted that the logged in member could see only his extract of payment (and other specific and private data), from a data-base fullfilled by me (as administrator of the site). The extracts of payments can not be available to other members, because it needs to be a private information.

How is the best way to implement that? What codes or apps do I need?

Thanks.

Wix Member Profile tutorial might be a good start for you to work off of.
https://support.wix.com/en/article/corvid-tutorial-building-your-own-members-area