hey guys! looking for some advice on my python's terrarium and health.

[Starbuck]

I would disagree, it does NOT sound like you are on the right track, but rather were told a bunch of bullcrap advice from an individual working at a petstore, trying to sell you a bunch of supplies and items you don't need.

If the 10G is a screen top, you might as well ditch it right now and get some fish for it, screen tops (and especially one as small as that) are not really appropriate for Bps.
Many members have had lots of success with plastic bins (the kind used for storage) with some small holes drilled into the sides.the problem with a screen top is that it lets all of the humidity (and heat) rise right out of the enclosure, creating an oven affect where your snake is chronically dehydrated and overheated.

If you like the display look of a glass tank, you could go with a front opening exoterra style, or get a plexiglass lid cut to fit your tank, with a hole cut out for SOME ventilation/a light if you choose to use one (i will get to the heating elements next).

The 'stick on the wall' style thermometers and hygrometers are notoriously inaccurate; your meter might be reading 60% when in reality it is only 30-40, or conversely 80-90. You are much better off getting a digital thermometer/hygrometer (like the type designed for a back porch or outdoors) from home depot or equivalent, or a more accurate dial style (also found from a home improvement store). You can check your temperatures, additionally ,with a temperature gun (it uses an infrared (?) beam to wirelessly check temperatures a certain distance away, this is good for determining a hotspot in the enclosure, and spot checking your thermometers.
To provide the heat with the elements you listed (a heat pad), you MUST have a thermostat, otherwise you have little to no control over how much heat the pad produces. Many BP owners don't use bulbs due to the convection effect i mentioned, but someone else should be able to comment on how you can do that safely. Other options are heat tape, flex watt, and radiant heat panels, all of these require a thermostat however. You should be able to get a cheap one (hydrofarm?) online for around 30$.

Otherwise, sounds like you have some good cover and hides, though more is better. As aRep mentioned, you will want a variety of hides on both the cool and warm side so your snake can feel secure and thermoregulate.

While you make the above modifications, you can use a temporary humid hide (take a sandwich tupperware or equivalent and fill it with moist (NOT dripping wet!) sphagnum moss or paper towels, and cut a hole big enough for your snake in the side, so he has a humid place he can retreat to temporarily.