With a personal assistant, you'll need to provide very detailed instructions for success. The list of items you list for your PA will take roughly the same amount of time as actually just doing the work.
Drycleaning, handling returns, that stuff is easy. But if you're like me, that's only 10% of what you need to get done.
I'm wired similarly, have tried PAs, and I try to use services that have a PA aspect to them. (StichFix, Uber, wedding coordinator) -But unless you're putting in the work to really get value and automate the things you need a PA for, you'll find yourself just shifting the boring tasks to dealing with the PA, and shift the problem.