I am not speaking from authority, I am only musing myself.
I assume she spent some time with Tollus and 'empowered' some cultists into demons, then went to Old Forest and spent time warming Alraune during the blizzard, then she went and defeated Queen Nyzarrah to bumble-fy the hive and then on to Winter City starting orgies and working on portal. During free time time, she used the Ways Between to move around to KM and Harvest Valley (which is mostly Tollus' Cult working with her just popping in as the 'Goddess'). After Winter City, her Ways Fortress and KM breeding pits probably.
I don't think she has to be everywhere, she gave power and corrupted cult members and Tollus sent them around, while she was exploring the north and getting the lay of the land; to the Harvest Valley and likely the Windy Peaks where they captured harpies (not hard to do) and then took them 'down below' for breeding. She probably set up the pits, but wasn't hand-on for everything, but delegating it to Tollus (for better or worse). And those corrupted or demonic cultists can also corrupt, like Painted Demon or Goblin Succubus and spawn imps around those areas.