Without The Mist (PJO & HOO one shots)

After the war with Gaea, the demigods started to experience weird things.
Mortals would wander into camp, freaking out at the pegasi, dragons, monsters, etc. They started seeing everything. It was like the mist had vanished.
Finally, one day, the gods had decided that it was time to reveal the greek world to the mortals. They couldn't have the mortals running around, clueless, terrified by undefeatable monsters.
However, the identities of the demigods must be kept as a secret. The monsters would start attacking mortals, and they need to learn how to defend themselves. They couldn't keep on relying on the demigods.
Keeping your true identity a secret isn't as easy as it sounds. Monsters kept on attacking, forcing the demigods to reveal themselves. Slowly, each demigod rose to fame. The mortals were restless. Demigods were always being bugged by crying mortals. They could barely eat or sleep with the mortals screaming their name, asking for help.
How long would the demigods last in the world with no mist?