Microsoft Access technical help

I have been looking at setting up an Access database for some time as a management system. The database should help me manage my membership base consisting of companies and people. The idea is to develop the project slowly over a few months so I am able to learn and adapt during the process.

I have multiple tables set up and wanted to set up a user navigation screen. For the screen - I have set up a form with tab control and set the main navigation form with a company tab amongst others. The idea is to have a list of companies, when I select one it displays the company information. On another tab, I want to use people, so when I click on a person (via a list box) it returns the information for that person, and the company they work in. I set it up this way since having all the information on one page will be too much, and sometimes I want only information on companies, and sometimes people. There are further tabs I am looking at setting up during the process which will include members, notes, projects etc.

1. Is this possible to do, or does the company tab with the source set as 'company' for the records stop me from being able to set up a separate source on the peoples tab?
2. Is there a way to log notes against each person or company - which is time stamped and dated to when the record is created or if I wanted to add some historical notes?
3. Is there a possibility to set up the records so they are locked for display, and the only way to enter a new company or edit is when I click either an Edit button or create new record? Ideally with people and the company.

In basic, I would like to have a similiar screen and function to companies with the people tab, but not sure if the comapnies tab is locking the whole database navigation sheets to the companies table as the resource, when I change it on the people tab to a new source i.e. people, it breaks the system.

Maybe the navigation pane was not the best way to set this up, but I am looking for some expertise help over the coming months that I can dip in and out of, but happy to try most things myself and learn in the process.

Data has been cleared for GDPR reasons. I attach screenshot of companies, people and current tables and forms.

Would you be available to help?

Many thanks

Suteesh