Can't get Python Requests based Reddit account generator to work.

Hi all,

I am trying to create a Reddit account creator based on Python requests (to save bandwidth resources).
Below is a brief summary of what my code does. Btw I am using rotating proxies which I lock in for each requests.session()

1. start an requests.session() instance.
2. update the session headers with the following parameters:
s.headers.update({
"user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.101 Safari/537.36",
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.9",
"content-type": "application/x-www-form-urlencoded",
"origin": "https://www.reddit.com",
"referer": "https://www.reddit.com/register/",
"sec-ch-ua": '" Not;A Brand";v="99", "Google Chrome";v="91", "Chromium";v="91"',
"sec-ch-ua-mobile": "?0",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin"
})

3. GET request on https://www.reddit.com
I do this so that I can pass cookies from the main page to the register page. I am passing the cookies to each next request on reddit.com

4. GET request on https://www.reddit.com/register/
On this page I find the crsf token and recaptcha key.

5. POST request to https://www.reddit.com/check_email
The csrf token and email are posted along with this request.
This request also updates the cookies in the process.

6. Solve recaptcha through paid API. I do not use the cookies from this request for subsequent requests.

7. POST request to https://www.reddit.com/check_username
I pass along the csrf token and username.

8. Final POST request to https://www.reddit.com/register/
I pass along the csrf token, recaptcha response, email, username, password, dest = https://www.reddit.com, email_permission = false and lang = en_US.

The problem is that the final POST request returns a 404. I am not sure what the problem is.
I did notice along with each step POST requests were made to https://events.reddit.com/v2. I am not sure what this does and if it is crucial or not.

I am wondering if any of you guys have more experience in this type of stuff, perhaps specific to reddit as well.

Thanks in advance!

It's hard to say without seeing the code. You could also try https://www.blackhatworld.com/forums/hire-a-freelancer.76/ and pay someone to solve it.
Regards