As Donna mentioned, there are many who travel solo, by choice or necessity. I have covered tens of thousands of miles on my own. The best part is that you get to decide when you stop, start, eat, and where. No fighting over the music to be played either. It can be a great adventure. I suggest you read, and follow, this thread, which is a great example of a solo roadtrip.

As you will now be well aware, an RV is not economical for a solo roadtripper. Hotels and Motels need not be expensive. Along the way you will find hotel/motel discount coupon booklets at rest areas. These can be great for finding budget hotels. Usually they are only for walkins. Rooms are not guaranteed, discounts apply only to a certain number of rooms. Having said that I have only once missed out. When you get to a hotel/motel, be sure to check the room before you commit. Besides cleanliness, check that the smoke alarm has not been disabled and that the room has a lock which cannot be opened from the outside, such as a chain lock.

Be sure to carry good maps, or a good road atlas. Besides routes and towns, maps show many of the attractions along the way. Scenic routes are also marked, to give you some respite from the interstate, and vary the scenery.

Have a safe trip.

Lifey