practice. I used to skate a ton growing up and it's just how you fall at first riding a bike, but then it's super easy and you can even do it with one hand on the bars or no hands, hop a curb, etc.

Once you get used to the balance, it feels comfortable. Also, the near frictionless surface is why you push sideways and have your blade at an angle to the ice.

And yes, as another commenter said, your skates should be super tight, like how soccer cleats are. You should have a ton of control.