Hey everyone! I am a new owner of a female ball python. Her name is Siddalee (Sid). I am thinking by her length and weight that she is a little over a month old. I did a lot of research before purchasing her, even on this forum! So helpful! I have a few concerns, however and if anyone could help me that would be fantastic.

I bought her from a pet store. I know this is a big no no and I will never do it again as they misinformed me about a lot of things that I had luckily already educated myself on. Me and my husband went there to look around for hedgehogs, and against my better judgment I just HAD to see the ball pythons and fell in love with my little girl. The second I picked her up she wrapped herself around me and looked right at me. She is very friendly. Not once has she hissed or strikes at either of us. I will try to be as informative as possible.

Tank details:
I currently have her in a glass terrarium with one hide on her cool side (ground temp is at 75° but I cannot get the air temp to stay regular. It fluctuates between 75°-just over 80°) middle ground temp is usually at 80° and her hot side with her other hide fluctuates between 90°-95°. Air temps on the hot side fluctuate between 80-90°. My major issue originally was her humidity. (I live in NM and it's winter so temperature and humidity has been a challenge) so I decided to cover the middle of her terrarium with a wet towel on and off, I mist the cage daily and bought a humidifier which has been a saving grace and now I can usually keep her humidity between 50-65%, sometimes higher. I also bought at UTH after struggling with keeping temps up. Now, the other day the UTH skyrocketed to 118° at ground temp and I managed to cool it down after a minor freakout. But after I did this, she became very odd when I took her out to handle her at night. I could touch her head and she wouldn't flinch. She was ice cold. So I made a trip to the vet and they were able to warm her up, did a few respitory xrays and everything came out normal. It was a bad night of me feeling like a terrible mother and I went home and worked on her temps. They are back to normal. However, I am having trouble getting her heating pad to cool, and eventually I got so frustrated that today I turned it off and her ground temp is still high on this side at 99°!! I have heard about dimmers, and I'm wondering if I should purchase one. The UTH sticks to the bottom of the terrarium.
So today, I have been checking on her a lot after last night's scare. Noticed she was roaming way more than usual. I know this means one of two things. 1. She's too hot within her enclosure 2. She's hungry. Well, I fed her last Thursday and have been instructed to feed her every 7-10 days. But with her roaming, I decided to feed her again. Man....I didn't even get her food to her within her closure and she grabbed it right out of the tongs, and has happily made her way into her hide on the hotside and has remained there for about two hours now. Can anyone suggest the proper amount of times I should feed her now? She seems a lot happier but I am still concerned with my temperatures.
Extra info: she is kept in our bedroom. Little traffic. No drafts. Our apartment stays between 72°-77° 24/7. She is very active at night. I have seen her drink. But I have noticed her tilting her head upwards a lot today. I know it can't be an RI since I just took her to the vet. Hey also told me she has perfect scales and no other issues. She just got too cold and lethargic...and I don't know WHY.

So, just a few concerns with my temp and her behavior after last night's scare. Any tips or suggestions are welcome. Thank you!