Instagram Non-Follower Unfollow Audit

I have around 6,800 Instagram profiles that still sit in my “Following” list even though they do not follow me back. I want every one of those accounts removed, none kept, and it must be done directly from my account—no third-party automation or scheduling tools... (Budget: $10 - $50 USD, Jobs: Account Management, Instagram API, Instagram Marketing, Social Media Management, Social Media Marketing)