BGM,
As a survivor of a micromanger boss, I have some advice.
First off, your boss is micromanaging for a reason. Usually its a lack of trust. What you have to realize is that micromanaging is MUCH more stressful to her than it is to you. She thinks she has to do everything and spell everything out for you. Essentially she is trying to do your job and her job
My advice to you is this:
Figure out what is important to her. She likely complains about something alot. Whether its the budget, deadlines, etc.
Now, identify something in the process that holds that up. Or even a project you think needs to be done and interests you. But your selling point is to going to be it will reduce whatever she complains about most. And if she's like most bosses who micromanage, you get to hear about what irritates her the most....alot.
The key thing is, when you pitch to her, you are going to feed her her words and her answers. Because in the end, she doesn't want to hear your words, she wants to hear hers. By making her think you and her are on the same wavelength, you are earning trust because she thinks she is transforming you into a mini her....which is what she wants. Do this project well, make her think it was HER who made it possible. She'll feel like she was a good 'manager' to you and you will get some rope to do your job how you see fit. Keep in mind she is going to take all the credit for the project if it goes well, and you will get all the blame if it falters. But the key here is make your work day livable, even enjoyable. But, until you can earn/get a degree of trust from your boss, it's not going to be.
