Injured Ball Python and Trouble Shedding

[Craiga 01453]

Both above replies are very well said.

It's important to understand that shedding starts as soon as the old shed is starting to shed itself off. So, the best thing for a good, clean shed is proper husbandry all the time.
Since you've only had this snake a few weeks, this shed isn't on you. But, you can start now to help the next one.

I would try a quick warm water soak, then try using a warm, damp towel to let the snake slither around in. Apply just enough pressure to help the skin off, but not enough that you're restricting the snake's movement.
The cracked skin and dented eyes are a sign of dehydration.

Are you offering a big enough water bowl?
What substrate are you using?
A different substrate may help with your humidity. Also, if you're using a glass enclosure, cover most of the screen lid. I actually wrap the sides, back and top of my glass enclosures with 1/2" foam board insulation. This helps immensely with heat and humidity control while also blocking the sides and providing a sense of security for the snakes. Just cut pieces to fit, including cutting a hole a bit bigger than your heat lamp for the top.

Feeding the prey items wet will also help if the snake will take them wet. Some will, some won't.

Also, like Ladybugzcrunch said, you don't want wet substrate, even inside the hides. This can lead to a whole other set of issues.

Lastly, I don't think a vet visit is necessary at this point. However, it may be worth mentioning to your Mom that she wouldn't go to a podiatrist for chest pain, so why bring a reptile to a mammal vet???

Edit: one thing I forgot: I know you've been medicating the snake twice daily, but it's very important at this point to refrain from any handling that is not 100% necessary.