Wink survivor here too. Welcome! You'll be glad you came. The Hubitat platform is completely different and there is a learning curve but oh boy is it worth it! Once I got used to the nuances it's great, and the community support is awesome. Not saying you won't have issues, things still go wrong, but HE is REALLY quick to fix bugs and new features are released all the time.
Here's a quick link put together by @rlithgow1 and @neonturbo. It's got some helpful info and video links. And feel free to search the forums and ask the community for help. There's a whole bunch of us here and more arrive every day, so you'll find lots of advice and assistance.