One and a half year old snake, 50 grams?

[PitOnTheProwl]

A petco temperature reader on the right wall of the cage (cool side during the day and hotspot during the night)
A zilla humidity and temperature gauge in the center
A temperature gauge strip on the left wall of the cage as well as on the right.

I'm not using anything to regulate them, money is tight at the moment.

First off, unplug your heat mat now. You are probably cooking him when he is on it.

This was after about 10 minutes or less of running unregulated.

Second your humidity is probably no where what you think it is.
All those gauges you have in there are only giving you ambient temperatures, you have nothing telling you what the surface of your hot side is.
Husbandry is 99% of the problem with problem reptiles.
You might be able to save him if you correct these issues.

Trust me I know about tight money. I have been unemployed for almost 2 month and my wifes check covers all of our bills, debt and animal needs.

You can get a lamp dimmer at Lowes or HomeDepot for less than $10
You can get a thermostat (hydrofarm) for $30 from Amazon or check with your local garden centers.
A Sterilite tub is $5 or less from Walmart
You already have paper towels and water bowls....
Don't spend so much on what it looks like, spend on doing it right for them.