The curves are established based on performance on the sections when they're presented as experimental sections, so wherever you take it, the curve is predetermined.
The curve isn't the type of curve you're thinking about. The curve is pre-determined based on the sections from when they were experimental sections (just as Cant Get Right said). Others' performance doesn't impact your own score at all.
Yeah, I think that's fine. Curve breakers take longer. Once you start working on a comprehensive pacing strategy, you'll just need to earn that time on the easier questions which it sounds like you're already well on your way towards accomplishing.