Disclaimer: Shadow work can bring up a lot of garbage and repressed memories. While you can do shadow work on your own, I also recommend you have a licensed medical professional for access to therapy and medicine so you don’t do anything rash.
Here are some resources from the forum on shadow work.
Shadow Work for Fighting “Toxic Positivity”
Shadow Discovery black_heart Witchy Challenge
@MeganB covers this on her website and on her YouTube channel. My bet is she would have other resources, too.
→ https://www.roundthecauldron.com/2020/01/15/shadow-work-embrace-the-darkness-to-become-whole/
→ Shadow Work Series - Spirituality and Personal Development | 'Round the Cauldron
I wish you all the best on this journey. Remember we are here, too, to support you and love you.