That's it? Not an affair, preferably with another woman (or two women)? Go for it! Small change.

So, I'm 55 and have lived a super clean life as a suburban housewife. My kids are gone, and I am free! Traveling, doing whatever the hell i want, whenever i want! I kinda look like someone's mother...well I am.
I am thinking of getting a tattoo. A little one on my lower back.
If one of my kids did it, I would kill them. So, in my world, it's bad. And doing something bad feels good.
Any other ideas for being a middle Age badass?