I'm really glad to hear you've made progress and feel so secure - that's brilliant, well done!

Go with your gut instinct on this. If you cut contact and it doesn't work for you, you can always go back. Maybe discuss it with it T first, and see what she feels on the subject? I definitely think it would be great (ideal, even) if you were able to stop most outside contact, but still have it open for those (hopefully few and far between) crisis situations, you know?