As a psychologist, I would say if you are experiencing recurring depression, meeting with a professional is the best next step. Here's a short guide on how to find a therapist if you're not sure how to begin.

https://azimuthpsych.com/articles-and-ebooks/how-to-find-a-t...

NAMI https://www.nami.org/ also has a lot of great resources both online and local to you.