It's a struggle keeping temps and humidity correct, which is why I ordered a PVC enclosure to help me out, not suggesting you do the same, just saying I got tired of constantly worrying about it. I had a very similar experience to you when I first brought my guy home, and quickly realized if you go to 10 different sites looking for temp and humidity guidelines, you'll find 10 different answers. The crew on BP.net have talked me off a few ledges when it comes to being concerned over what my parameters are like.
It's just as bad with other animals as well, I keep crested and leopard geckos and you'll find all kinds of different info about husbandry for them.