Excellent idea. I'm glad she lets you have hobbies, instead of just keeping you logic-lobotomized like she did to Roxy Prime.
How physically active is your work? If it's sedentary, like office work, you should find an active hobby if you can. Cycling is always a good idea.
If your work is something more active, like lifting heavy objects or murder, you might try a craft. I could teach you to knit, if you don't know.