I'm thinking of ending a seven year relationship. Do you have any advice for me?
Why do you want to end the relationship?
It feels like she's more like my parents and I don't trust her.
I understand, it's wrong to stay in a relationship that you don't want to be in. If you can't repair the relationship, you should just break it off with her.
I'll do it next week.
It's wrong to stay in a relationship that's not making you happy, but make sure that you're considerate of her feelings. Think about how you would feel if she was ending her relationship with you.  Choose your words very carefully and be constructive about the true reasons your relationship is ending.