Content-Security-Policy help

I’ve been recently trying really hard to secure my WordPress install(s) and the only thing remaining are properly configuring Content-Security-Policy but even though I am receiving an A on Security Headers, some things don’t quite work in my Admin page due to the policy implemented.

Could someone help me review these policies and see if I am overdoing it? What is the correct balance?

The page I need help with: [log in to see the link]