My GA tells we that when someone "fires" their own GA, the GA just takes on a slightly different persona. When you transition, both of you have a laugh about the firing.
Your GA is taking care of you in all your lives on earth, which are taking place ALL AT THE SAME TIME--as time is an illusion to us.
One of the "rules" of requesting MBO's is that you have to request the assistance--our souls have told the "golden light beings" who act as our GA's to not interfere, unless we ask for the assistance, and then they will take care of everything--parking spots all the way up to the most important requests such as the PERFECT job, home, or mate. But those requests you have to be PATIENT as they take a LOT of machinations. Perhaps there is a person working in that perfect job and they have to be promoted or leave the company, or you need another job in the interim to build up your experience. Theo says humans are very impatient (and he says that with humor).
But that's why, as Angelpsychic said, start with the small mundane requests to build up your trust in the process. Once you get into this you'll be amazed at what you can request. Even dangerous situations like the one I'll have in my newsletter this week where one of my subscribers had a home invasion that lasted all of 60 seconds after she requested several MBO's. The guys in ski masks pistol whipped her boyfriend, but it could have been a lot worse.