Break the Matrix

So the stuff I ordered finally arrived and I had a chance to attempt to perform self NCR. My face is smaller on the left side, so I begun by trying it through my left nostril. I used a Q-tip to push a balloon quite far in, and started to pump slowly and carefully. The balloon became quite inflated, and there was a lot of pressure around my nosebridge. However, I don't think that is what I should be experiencing, rather I should be getting something further down at the back of my throat? I actually went on to try the right side, and somehow the sensation was noticably different (I only attempted this side once due to the nature of my asymmetry) and probably more like what I should experience.

So should the nosebridge feel under a lot of stress? Is this OK and do I simply need to keep pumping to get the throaty sensation? Also, I was doing a lot of experimenting, so probably attempted the process around 10 times - is there any danger in carrying out the procedure in quick succession, especially considering I do not feel like I experienced the 'correct' sensation.

thanks