Moved to Proton mail from GMail. At the same time I purchased a new domain and got SimpleLogin to create new aliases for all my sites and services. The only site that knows my real address is Proton itself and SimpleLogin.
I also ditched Chrome for Firefox. I honestly prefer Chrome but hate how controlling Google is with Chrome. I also switched to Duckduckgo. I’ve never actually felt less tracked in a long time as a result. Actually eye opening. I used Incognito so often for Google searches to not be tracked. Now I can search freely without then seeing ads or content related to that search elsewhere.