I don't think there is anything wrong with using a bit less rosin than some folks.  If you weren't using enough to make a good sound, I think your teacher would have told you about it.  Nathan Milstein, for example, is said to have used very little rosin, and I've never heard anyone say he didn't sound good.

I don't get a lot of rosin dust on my instruments either.  I don't put a lot of rosin on my bow.  Two strokes in warm weather, maybe three when it is cold and dry, if it didn't feel like it had quite enough.  Then I tap the stick with my fingers to get rid of any loose rosin dust before playing. 

I wipe down my acoustic violin when I am done playing with a scrap of black silk.  There usually isn't enough rosin dust on the instrument to even show on the black cloth. 

I also do something that may be a bit different than some folks.  I wipe down the bow hair with a paper towel when I am done playing for the day/night, and wipe the stick down with the same scrap I use for the violin.  I started doing that fairly early on after the first time I figured out I needed to vacuum my case to get rid of rosin dust from the bow because it was getting all over the inside of the case and on my violin.  I also figure that wiping it clean and applying new rosin every time is a way to be reasonably sure I am using about the same amount of rosin every time.

That's just the way I do things though, not saying it is great or suggesting you should.  But I also use less rosin than some folks seem to, and I don't end up with much, if any, on my instruments.  So hey, at least you are not alone in not ending up with a lot of rosin dust on the top of the violin from playing.