With tarantulas the number one rule to keep all your spiders happy is the KISS rule KEEP IT SIMPLE STUPID. We often try to control the spiders or think what we would like the spider to do or how we think it should be behaving and when it does not do what you have read online or what we think it should be doing we go OH no its dying then we get all complicated and mess around with heat and humidity and other stuff.... and you end up killing your pet. RELAX spiders are incredibly tough and adaptable animals.
Tarantulas are probably the easiest animal to keep in captivity. I have kept over 120 tarantulas at any one time. Guess what i keep them all the same and i have only had one death in 7 years was a bad molt.. Yes your cage set up might be a little different between the arboreal and terrestrials and burrowing species. But the care is all the same.
IF you follow this i guarantee that you be fine. KISS. Leave your spider alone, if it wants to hide 99% of the time let it hide. I have had some spiders that i saw maybe once a month every spider has its own personality.
Relax and enjoy the hobby its very rewarding..