The whole stealth camping thing has got out of hand. It makes it seem like you are stealing or something. I think that kind of social anxiety is perfectly normal, but when the end of the day comes you will find a place to stay. Ask permision. Ask at the police station, or fire hall. Just tell everyone you won't light any fires.

I would guess that any place that really only has campgrounds or parkland where you could camp, every 100 miles probably has a few place you could camp in-between.

Or get a lift a little closer to your first campground. I do that a fair bit, I find it saps some energy if I have to drive out over the same paths I have done a thousand times before.

Overall, there isn't anything wrong with quiting, but you have to start before you can do so. If you really don't enjoy doing this kind of thing you will find out soon enough.

To me the same thing that gives me the feeling of freedom and adventure, is the same thing that means there might be the odd awkward moment, the vices of the virtues problem.