This is amazing, I hope you'll be really happy here! When it comes to learning the language, everyone here already speaks English (as you're definitely already aware) so you might have to push really hard to get some immersion learning going because people will switch to English to make things go smoother. Make some friends and insist on using Swedish when you feel comfortable doing so.
For the winter, you might want to make sure you get sufficient vitamin D. Sweden's southernmost point is further north than most of the populated areas in Canada. The cold isn't as big a problem here as people might think (particularly thanks to global warming), but the day lengths shift dramatically and even as someone who's lived his entire life here I still struggle with it. I get miserable and cranky in the winter, and then euphoric come spring, only to slip back to cranky when the sun goes up at 2AM in the summer. Not even exaggerating, I took this photo of my dog around 2AM back in June 2023.
I hope that this will be an amazing stage of your life! Make the most of it! :)
Edit: fix words.