Thank you, Ms. Organa. I assure you that your baking efforts are appreciated, but if you would leave them in one of the common rooms for your fellow passengers to enjoy, I would be much obliged.

Now, about your questions.

1. You can always change your futures, Princess Organa. This is one of the great benefits of being alive.
2. Think of people from different places in your three spatial dimensions. Latitude is different from altitude, but are they separate? Where is the boundary between them?
3. Consider a train, diverted onto a new track with all souls aboard. Does diverting the train create a new path? If you dig a canal and change the course of a river, what happens to the water already downstream? There are deep structures and resonances in the world. It is the nature of an axle - an axis - to be both fixed and turning. I am not trying to be obscure, but you don't even understand your own question. What you perceive as contradiction isn't, but it also can't be simplified in a way you can see.
4. It's right there in the names. Breaches flow into us. We step into ports.
5. Opportunity.
6. Some of them require rather more work than others. If you'd like to change your current deal, I'd be happy to vet any new request.
7. Get creative.