Feeling like I need to ask for permission?

How do you stop feeling like you need to ask permission for divorce? I (36F) feel like I need to tell my husband (40M), "I think we need to get divorced, if that is okay with you."

I don't even want to type out my story. It's too much to type, too much to read, and too much for me to relieve at the moment. I don't post on Reddit much, but you can see my post history on other forums if you're curious about the latest *thing* we have dealt with.

I feel like I don't trust myself, although I know I'm capable of making wise choices. How do you get past the feeling of needing permission and making sure they're okay? Sometimes I think it would be best to just stay and to keep withering away inside than to rock the boat and leave.