Flying tomorrow - tips?

Doctor cut off my travel at the end of the month so my parents are flying me home (Toronto area) for one last visit. It's really nice of them and I can't wait to hug my family and see my neice and unborn nephew (they are due in June). But I'm a little apprehensive about flying. I flew to Connecticut at Christmas when I was 10 weeks and it was not entirely pleasant but maybe that was just because flying at Christmas is always unpleasant.

I picked up some compression socks, and am only bringing a carry-on so light packing and easy deboarding, requested aisle seats for extra leg stretching, but does anyone have any further tips for staying comfy on the flight and keeping the emotions in check?

TIA!