I need help/advice on how to keep my humidity at a stable/okay level. My tanks are getting dry rather quickly and I'm not always there to mist them, and I have tried makign a makeshift drip system but they either drain too quickly or dont work at all...

After a good misting my humidity only seems to stay around 60... though I figure it should be up to at least 80...

I am right now trying to save up for a good humidifier for my actual room (because my place itself is low in its humidex reading) and hopefully if my actual room is normal maybe my tank can stay normal.

Any suggestions though to keeping a moist terrarium?