Yea, dont look at the tips of your ski's going down the hill, That is a good suggestion.
And it sounds like your in the back seat on your skis like the others have stated here. Gotta get your weight off the heals.
Learning to get down the hill in a wedge is like a bad habit that you cannot break. That's my .02.
I have to consciously keep my skis' parallel the first run. Like a pre flight check. Go down and make sure everything is working right.
While I believe boots could be the issue here as well like others are saying. I don't think that it is that big of a factor. I had the urge to wedge when I first started skiing due to improper weight balance.
You have to consciously keep them parallel until it's natural. That's my opinion though. Others can feel free to slap it out of me. But I'm speaking from my experience as a newer skier.