I think a Class C is ideal for you. They come in small sizes - small enough that you wouldn't need to tow a car. A trailer would be a lot of work connecting and disconnecting for a single woman although some women do it. By the time you get a small trailer and a truck to pull it you're going to be driving a long combination.
There are many single women out there RVing.
Why not rent a Class C (smallest you can find) for a weekend or so? They're expensive to rent but it will give you a good idea of living in a RV.
Here's an interesting article on all types of RVs:
https://www.outdoorsy.com/blog/big-guide-to-rv-classes