Hey man if this makes you feel any better, I live in a bowl basically if it weren't for a complex floating dock it would all be marsh where I am and I've grown plenty of great plants, cannabis a few times and other in humidity that averages at 70% and never had any issues because I kept things spotless and plenty of airflow. Sometimes there will be wild fluctuations in the outside world but decent genetics would have been conditioned to withstand it.
with it being the hardiest plant I've grown intentionally I think you can let your anxieties rest my friend, I don't think I could kill one unless I tried!