Several days ago I faced a pretty old blogpost about our personal security in the web. I remember that I tried to remove my info from the web several years ago, and I think it made some effect because it reduced spam that I usually received and "cold emails" about different upcoming events.
Besides that I did:
- started using LibreWolf browser
- removed my personal info from my profiles on websites
- removed my social media accounts that I don't use
- started using MFA for all of my accounts
- started using a password manager to store tokens, passwords, etc.
You can also find useful tips in the following resources:
https://www.eff.org/deeplinks/2020/12/doxxing-tips-protect-yourself-online-how-minimize-harm
