It's not your fault that you're a virgin. We all start out that way.
Since she's obviously interested in you, ask her to go to the movies, ice skating, dinner, or something where you can interact with each other and have fun that you both like to do.

You have to big time exploit the little confidence you do have to build more later. Can't start a fire without that spark.

So she's a little aggressive. That could be what's needed because an older woman would have to be a little aggressive to show you the ropes. So don't be put off by aggressiveness.

And even if she's not experienced, a lot of fun can still be had by experimenting.

Just remember, if you keep doing what you're doing, you'll keep getting what you're getting.