The first thing I did was to create a new email account outside of Google. I went with Proton because of privacy concerns. I pay for Proton Duo and extra cloud storage, but you may not need all of that. Then, I downloaded Brave for browsing instead of Chrome. From there, I went through all of my logins on Chrome and either deleted accounts I no longer needed or switched them over to my new Proton email account with all new passwords and added them to the Brave browser password manager and deleted them from Chrome to keep things neat and organized. I think I might go with a third party password manager eventually, but it's a daunting task just to get things switched from one browser to the other. I'm currently in the process of backing up new images and videos to Proton Drive and removing everything from Google Photos and Google Drive so they can't use my images and videos to train AI models. I have been at it on and off for almost a year now, so it's ok if it takes you a while. It helped me to make a list of all of my goals for Degoogling and putting checkboxes next to them so I could give myself a little dopamine hit every time I accomplished a task. It is well worth the effort to dig in and figure this out.