I'm 5'2 and I have to sit right up on the steering wheel to reach the pedals. The seat belt cuts into my neck all the time, I have to stick it under my arm. But I suspect the damn air bag will get me if I'm in a crash. My face is right there on it.
Small tip, they make these seat belt pads that wrap around the seat belt and fasten with Velcro.
OR,...as I gave a friend of mine, one of those small or medium binder or bulldog spring clip fasteners, the black ones with the 2 fold out handles.
You pull the belt out so it's not pulling on your neck and clip the belt next to where it comes out of the frame so it doesn't fully retract and it gives you some slack and is not rubbing on your neck. That way the belt will still look fastened (and the cops won't stop you for a no belt ticket) and you'll still have some protection.