I don't want to be a nervous flyer....

I'm looking for ways to stop my nervousness of flying. It's gotten to
the point where I think I will never get on a plane again, but that is
debilitating. I've flown many times, at least 35 if you count each take
off and landing. It didn't used to be bad but it's just gotten worse
each time, as if I've become more aware of what's happening and now
expect it before I've even gotten on board. I don't think it's a FEAR;
I'm not affraid of a crash or anything. I think it is more of a
feeling. It's as if I can feel that we're flying, the speed, the
height, the movement..ugg. I also feel a bit disoriented, like I can't
tell which end is up and it always feels like we're tilting or leaning
unnaturally in one direction, or forward or back. I don't feel airsick
or anything, just a feeling like I'm about to freak out and have a
panic attack...all made worse by the fact that that would be
embarrasing, and woulnd't even alleviate the problem. Everything I try
to look up about it deals with a fear/safety issue. Does anyone else
relate to what I'm talking about? I think it might have to do with
control. I hate being a passenger in the back seat of a car as well,
especially if there is no door directly for the back seat. An airplane
is like that for me but of course 10 times worse, and for a longer
time.
The odd thing is I kind of enjoy take off and landing, especially when
being so close to the ground. If the whole flight was say 500 feet in
the air I think I would be fine!