Multiple state

I lived, worked & filed my tax in California all my life.  I just bought a property & started working remotely in Florida on March 2023.  I stayed there more than 6months+1 days and converted my residency to Florida in May 2023.  Do I file tax with Florida or both states?  I also changed my mailing address on my employer salary so I should receive my W2 with Florida address.  I need to pay estimate tax on stock I sold with my previous employer based in California, should I do it using Florida or California turbo tax?

Thanks,