Hello mostly
I had a planned section (breech) then a vbac, and was worried about this too. I was also very keen for a vbac and to avoid things that start going back toward a surgical process. I don't have any magic answers, but I can tell you what I did….
I suppose what most helped me feel less worked up about it all was talking to people and feeling I'd got some kind of say in what happened. I spoke to my consultant a few times about what I wanted and didn't want, got (free) advice from a short call to an independent doula on what to ask for and wrote a (slightly obsessive!) birth plan so at least those around me would know what I wanted without having to ask me. I ended up in a sort of "monitor me if you need to but help me try to avoid it" position. "trying to avoid it" was trying to do things that would keep me away from the delivery room until I really needed to be there - stuff like hypnotherapy cds beforehand on mindset and pain management, tens machine, asking to be left to labour without disturbance, birthing ball etc
In fact, I was in hospital for ages before officially in labour (too keen!), during which I was only monitored some of the time, which was ok (but long!).
Once I was in labour I was so focussed on the hypnotherapy stuff (and tired) that staying on the bed worked ok for me some of the time and they didn't monitor me all the time so I moved about in between. DH and I did have to keep reminding them to take it off. At some point they took me to the delivery room and then a brilliant thing happened - a doctor came in, said "I've read your birth plan and if you really want a vbac, you shouldn't be in the delivery room lying down being monitored, you should be back on the ward and we'll bring you back when you're really ready".
Hope that helps - for what it's worth I also heard that it's possible in some places to pay for a wireless monitor you can move about with, or even one you can use in a pool. Not at my (large, teaching) hospital though.
By the way, the vbac was just amazing compared to the section. 