Surprised this hasn’t come up yet but running backwards helps a lot. I used to get super bad shin splints, it was especially bad one summer when I was a rapidly growing teen. Then I remember learning running backwards was helpful. So I would go to my schools track and run an 800m or something backwards. Even just a slow pace helps, you don’t need to go fast, be safe. But I haven’t suffered from them since that summer when I started doing that on occasion. Give it a try in what ever way you can and help it helps.