Google Home & HA trying to configure

I will be the first to say I am in over my head. I have tried watching every video and read most of these blogs but I am still stuck where do I get these (2) strings from? Not to mention the API_key from google actions. Anybody that has a source for Noobs please let me know.

access_token: [a different long URL safe random string]
agent_user_id: [a string to identify user]

You make them up (if you read further down the page, it explains this and gives a couple of examples.

The API Key is also explained a bit more if you scroll down, and a link is provided to where you’ll find it.