Q.What Is Wrong With My Blueberry Bush?
My blueberry bush has been not doing so well for a while. I have tried a few things, like fungicide, watering it less, and adding plant food stake things that get inserted into the ground and deteriorate to feed the plant. Nothing seems to be working. I don’t know what to do from here. I have enclosed a picture of the blueberry bush.

Certified GKH Gardening Expert
I would make sure to check the pH of the soil. Blueberries will appreciate an acidic soil, and will not tolerate what looks like neutral to alkaline red clay.
As well, blueberries are a cold weather species. Even in Tennessee, in my area, blueberries can be difficult due to the heat. You may want to consider partial shade in the afternoon.
Testing your soil will be necessary.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
This search page contains several articles that can help you with the care of blueberries:
https://www.gardeningknowhow.com/search?searchTerm=%22blueberries%22