FB Automate Remove Old Post (for lazy person), if you are not lazy enough just do the manual delete by deleting one-by-one post on your profile page.
You can define how many post you want to delete by adding --limit parameter when running this program, example command is below this documentation.
1. git clone
2. python3 -m venv fbvenv
3. source fbvenv/bin/activate
4. pip install -r requirements.txt
python remove_post.py --email <your_fb_email_account> --pwd <your_fb_password_account> --limit <number>
Also see the preview: