Welcome to TalkGraphics

Without seeing your work it is hard to answer your question. But as someone who spent 40 years as a design professional, advertising art director and then graphic designer, I would say yes, this is a good reinvention of yourself utilizing your background and training. And yes, if you are motivated to go after new business (I always felt doing the work was the easy part, going out and bringing the work in was the impossibly hard part), then yeah, you can do it. And Xara Designer Pro is a great all around product to help you accomplish your goal.

Good luck.