Depends on what it is that you want to convince her to do, if it’s give you money? Give up, it’s never gonna happen.
Step-by-step explanation:
For the most part tho, clean the house be nice, and get her in a good mood, and spend time with her. Then go up to her, don’t outright ask, but wait for the right moment and ask for whatever it is. If she says no, then debate, but don’t argue, just say why you want to do whatever it is that you want to do. And be content with whatever answer you get. Then rinse and repeat.