Find a skating coach
or join a Learn to Skate class.
Having a coach look at your skating will help you not develop any bad habits as you're transitioning from rollerblades to ice skating. It's very hard to unlearn bad habits. Also, a skating coach will be able to help you make the micro adjustments that will help you gain skills faster.
Figure skating coaches are all about edges and stopping. Hockey stops are part of figure skating curriculum, as are all turns on all edges, backward and forward, as well as power skating. No one will make you wear sparkles, I promise.
If you do take a skating class, the coaches will give you something else to work on during spins (although, my hockey kid can spin and jump now, too, and it's very difficult to get him off balance during a game.) I'd stay stick with classes or a coach until you can do back crossovers confidently in both directions and do one-foot turns on either foot.