congrats on taking the msf course and getting your bike! i'm 46, started riding 4 years ago and my first bike was a kawa 500. people cautioned me against that bike for the sole reason that you are likely to outgrow it quickly (and i did; after 2 years i moved up to a vulcan 800 classic). but i have no regrets because it the 500 was a wonderful bike to learn on. it's very nimble and responsive and the engine size is great for a new rider, in particular a woman in my opinion.
i started out riding on my own. practice, practice, practice is right. find parking lots and quiet streets and just ride around to build up your skills and confidence and to learn the bike. ride as often as you can find time, even if just short rides to run errands. i rode with a friend last year, a new rider, and that was fun. this year i joined a group of ladies that ride (their average years of riding is like 15 to 20 years) and it's been absolutely great. i've learned so much. my first times riding in the rain, or at night or on the freeway have been less daunting when i had others to ride with. riding with a group has helped me challenge myself more in my riding. i recommend that after you've built up some skills and confidence find a group of women to ride with that are willing to be patient and take a variety of rides to give you different experiences.