This year, just survive. Of your 8 items, #1,2,4&7 stem from a once-in-a-generation pandemic that won't be nearby as much of an issue next year. #3 is a freak weather event. I've lived in Texas almost 40 years and only once before have I seen schools closed more than 1-2 days for snow.

Focus on the other things and how you can work around them. Dodge athletics practices when you can. Plan ahead for the stock show and write that week off. Get all of your performances done before testing starts. None of those things are going away. Adjust your programming goals - you can still have high standards and make great music with easier music that you can learn during class time. If you like the community and the job, work within the constraints. After a year or two, when you've seen some success, you can start to push back on some things.