Re: Absolute Beginner, advice please :)
The hide will unlikely be too small as they love basically being hugged by their hide, mine like having their heads out too but double check the temperatures just to be safe. We've even got probes inside each hide to make sure everything is normal, but I always say better safe than sorry lol ^.^
As for the feeding they can remain in feeding mode so it's not suggested you move unless it's from a separate container ( also the risk of regurgitation which I don't fancy xD ). For any mess try laying some paper towels down to catch any of it, then once she retreats to the hide then quickly move the paper towels. Although I'm not sure how convenient that would be for you as mine get handled before feeding and they have a pretty good way of letting me know they're hungry! ( long tongue flicks instead of short ones, especially my face & ear area o.0 and racing about looking for food). I started doing it to stop any aspen being absorbed and really wasn't keen on using the other container for feeding but it's all down to preference.. Each to their own :D
I'm not the most experienced so try help where I can, any other questions just ask away & I'm sure if I can't answer them loads of people here that are way more experienced can. :P
Re: Absolute Beginner, advice please :)
I can't say I've experienced not being able to see through the glass, are you measuring with digital hydrometer/thermometer? If not I would suggest using them. You could lower it a bit as 70% is what it's recommended to go to when shedding, normals around 50-60%, although it does sound to me like it could be a humidity issue. Mine is shedding at the moment and the humiditys at 72% but can definitely see through the glass, hopefully someone can give you some other advice on this :P.
Aspens fine to keep her on, I just use paper towels for ease of a quick clean if they have a messy meal without having to move them, also to stop them eating any substrate.
They are escape masters so they'll always have a nosey at what's around them. As long as you have everything secured then you shouldn't have much of an issue. If you have other animals you could lock them away while you're out of the house to prevent any accidents, my kitten is always trying to have a nosey so he's out the room whenever we're not in it to supervise.
The handling, it can be quite hard at first to read your snakes body language. I've only been bitten once and it was due to my own ignorance, the day of getting him home and out of the bag :weirdface. It's not sore for the little ones but the initial strike is the bit that I wouldn't like to happen again. The key is to be confident, not shakey. You could try a few reassuring strokes first around the body, also don't approach her head on as they tend to be very head shy. If you feel you need to have someone there get her out the first few times then feel free, but it really isn't needed. I was terrified of mine after the first incident and my shaking only made him worse, if you go in for the stroke, then stoke a few times then pick her up. Don't keep putting your hand in/out. You can also help reduce the head shyness but I wouldn't recommend it until you know when your snakes comfortable/uncomfortable.
I wish you the best of luck and once you get used to picking her up, you'll feel silly for being nervous about it, I definitely do :D !