Four things come to mind when I look at your setup.
1. The hide is too big for that snake. They like to feel tight and secure in hides. That one is way to big to provide security.
2. There is only one hide in the tank. You should add another to the other side so it can move back and forth.
3. You have the heat over the water bowl. Put it on the other side so you aren't heating up it's water.
4. It looks like you are using a daylight bulb. Replace it with a red one. Snakes can't close their eyes so the constant daylight disturbs them. They cannot see the red spectrum so a red heat lamp is good to use with that type of setup 24/7.