You are not alone. There are thousands of women traveling solo in their RVs.
I am one of them and closing in on 70. There are several 'women only' groups you may want to join. Occasionally they meet up on the road or have planned gatherings.
My number one rule, and first line of defense is: Trust Your Instinct.
I trust my instinct no matter what. If the situation doesn't feel right, I'm outta there.
I sleep with my charged phone, eyeglasses, and ignition keys within easy reach.
This makes for an easy get-away, and beyond that, I'm not adverse to running down mutant freaks.
I don't carry a gun. If I did, I think there would be a trail of neanderthals left in my wake (no pun intended), so, I don't carry one.
See ya down the road.