Confused on how to set up Drizzle and Postgres

[CordialGit]

I am trying to use Drizzle ORM, but something is not clear to me:

I want to create 4 Postgres Database Tables:
a.) Users Table: a table that will have normal user information.

Then there will be 3 additional tables for User interactions which records and stores a user's interaction on the website.

These are:

b.) Posts Table: a table with a One-to-Many Relationship -- where a user will have many Posts, many Comments, many Likes, many Thumbs Down, many Friends, many Groups, and many Pages, stored into this table.

c.) Purchases Table: a table which is a One-to-Many Relationship Table -- where a user will have many transactions listed to their name.

This table only keeps stock and inventory of all the Purchases that a user makes on my website.

d.) Points Table: a table which stores all the many Points, many Awards, and many Badges that a user will earn on the website.

QUESTION 1
In creating a Schema, I'm I going to create One(1) Schema per Table? -- in which case I will have 4 different Schemas?

Or

Is it one(1) Schema I will use to declare all the structure of the 4 Tables?

2.) How do I create Schema that will take note of all these four(4) Tables, and is able to link them to work together?

This is a big problem for me, and I am hoping that you can guide me on this, because I didn't see how to do it in the Documentation, and I've spent 4 days on it without hope on what to do exactly.

Regards.