And to my surprise around 4 or 5 hard ovals came out, along with a large amount of foul smelling fluid.
If those "ovals" were white what you actually pushed out out are urate and liquid urine.

For the anal prolapse it happens when you massage and try to help an animal pass out any possible blockage, in most cases it only last minutes, if it does not which is not the case it can be a SERIOUS issue. You should really not do this type of things with your limited experience BTW

As for eating you are offering TOO often do not offer more than once a week, the more you often the more it will lead to refusal.

I would suggest lowering the hot side to 86/88.

Leave your snake alone for a week NO HANDLING

Offer a live mouse (size equal the girth size of your snake) in the tub preferably in the evening, if not eaten remove after 10/15 min.

In the mean time NO handling until your BP eats for you.