How to write clean pytest chain api tests

New-ish to python and I'm stumped on this. I literally cannot seem to find a clear and correct answer anywhere online. I honestly feel stupid because this is a pretty basic python skill.

My issue: I've been tasked with writing a python test suite of asyncronous api requests chained together. I need to fire the requests, save values from the response json, then pass those values into subsequent requests.

Below is a list of what I WANT the test to do, and what I would expect it to do based on how I've written the test file:

1. Send GET to /users endpoint
2. Save first customerId from response payload as customer_id
3. Send POST to /customer/{customer_id}/addresses endpoint to create new customer address
4. Save addressId from response payload as address_id
5. Send PUT to /orders/{customer_id} endpoint to update order with the address_id from step #3.

Example Code: (This is the same code I have on my machine, but I've sanitized the file with fake info.

import requests
import json

    def first_request_get(self):
        url = 'https://api.example.net/users'

        headers = {'Content-Type': 'application/json',
                   'Authorization': 'Bearer asdfasdfasdfasdfasdfasdfasdf'
                   }

        payload = {}

        resp = requests.get(url, headers=headers, data=json.dumps(payload))

        json_str = json.dumps(payload)

        resp_body = resp.json()
        customer_id = resp_body['customer'][0]['id']
        assert resp_body['customer'][0]['id'] is not None
        assert resp.status_code == 200
        return customer_id

    def second_request_post(self):
        customer_id = self.first_request_get()
        url = 'https://api.example.net/customers/{}/addresses'.format(customer_id)

        headers = {'Content-Type': 'application/json',
                   'Authorization': 'Bearer asdfasdfasdfasdfasdfasdfasdf'
                   }

        payload = {"address1": "285 Beandip Ln",
                   "city": "Lincoln",
                   "province": "Nebraska",
                   "zip": "68510",
                   }

        resp = requests.post(url, headers=headers, data=json.dumps(payload))

        resp_body = resp.json()
        address_id = resp_body['address']['id']
        print('address_id == ')
        print(address_id)

        assert resp.status_code == 200
        assert resp_body['address']['id'] is not None
        return address_id

    def third_request_put(self):
        address_id = self.second_request_post()
        customer_id = self.first_request_get()
        url = 'https://api.example.net/orders/{}'.format(customer_id)

        headers = {'Content-Type': 'application/json',
                   'Authorization': 'Bearer asdfasdfasdfasdfasdfasdfasdf'
                   }

        payload = {"address_id": address_id,
                   "next_charge_scheduled_at": "2022-01-31T00:00:00",
                   "price": 6.85,
                   "quantity": 2,
                   }

        resp = requests.put(url, headers=headers, data=json.dumps(payload))

        resp_body = resp.json()
        subscription_id = resp_body['order']['id']
        print('order_id == ')
        print(subscription_id)
        assert resp_body['order']['id'] is not None
        assert resp.status_code == 200
        return subscription_id

The result of executing this test file ends up looping through the file in a weird order rather than doing what I would expect it to do. Why do I have to call an earlier function just to access the variable I've already extracted from the json and assigned to a variable in an earlier function?