Welcome to A-level ICT
Once you have worked out your entities and planned your relationships so they are all one-to-many, you need to replicate you Entity-Relationship Diagram into Access.
Firstly, set up the tables making sure there is no gaps in your field names (use underscore if needed)
Then make sure every table (entity) has a primary key (right click on the field and select primary key - making sure it has a key next to it)
Make sure you put your foreign keys in, checking the data type and field name are the same.
Once you have put in your validation rules and input masks, you are ready to form relationships between the entities.
Once you have set up the relationships, to test whether they work, enter a record into each and make sure you can click on the + next to each record and see the related details.
Once you are happy it is correct, screenshot tables and relationships into your document.