There’s a corp solution called “CyberArk” that’s intended for storing passwords and other secrets and providing an audit trail for every access, as well as access controls, etc. It’s nothing like a solution for personal data storage, but those core concepts would be great.

1. Your stored data is under access control.
2. Configuration of access to this data (write, read, and access frequency) is controlled by you.
3. Access grants to others are time limited (although, maximum time may be 10 years or more.)
4. Every data access is configured to be logged by default.
5. Access to important data can be configured to require real-time authorization by the owner.
6. Full change history is logged by default and thereby all changes can be reversed.
7. Only the owner can choose to delete change history.
8. Only the owner can choose to delete logs.

The trick is getting Meta, Alphabet, X, banks, retailers, libraries and the rest to agree to use this API for storage of your data. The next (impossible) trick is enforcing their secure deletion of copies of your data in a timely fashion after they have accessed it.