One thing you can do is to stop worryin about the "air" and work more on your Approach, and Takeoff.
It's best if your air is generated more from speed and direction of travel instead of "pop" or jumping. Call it "Terrain Unweighting" instead of "up" or "down" unweighting, either of these will change your direction of travel too much until you get more experience in the pipe.
Start to learn to pump your arms forward with different ramp shapes. Start with flatter ramps.
As your tips contact the ramp entry pump your arms forward & up at the angle of the ramp. As your tips move into the air drive your arms forward at the angle of the ramp and out into space. This is the important part in the pipe, to move up beyond the lip and into the air with your whole body.
When you feel a little extra, "hang time"/travel compared to what you normally feel on that ramp move to a steeper one, and in this way work up to steeper ramps until you are doing it in the pipe.
Until you learn to move with the ramps it's all about arm pump in the pipe. Once pumping both arms gets you the weightless easy feeling at/above the lip, start pumping one arm, not across and down into the pipe yet, but just pump one arm up like you were doing two , this will give you a smooth, floaty roatation feeling. Uphill arm turns you down pipe, Downhill arm turns you up-Pipe (alley-oop stylie)
Once you begin to feel the float in this way you can start to play with which edges you take off from, uphill (generally not good, but it depends) flat skis (better and useful lots of the time) or downhill edges (dynamic and speed maintaining, but again depends on some things).
After exploring the above things it's time to start using pop to generate more air/spin etc. But if you go in trying to use Pop right off the bat it usually screws up a lot of basic stuff as you haven't yet begun to really ride the terrain.
Have fun. Pipe is a blast.