Is there any indication when a turn comes up, that you will be continuing on a particular loop that you are riding?
Example- I was riding the flat loop, and I decided once I started on the hilly loop, I would push myself to complete the loop in a exerting fashion. I guessed the first 3 turns correctly to stay on the hilly loop. But the last one, with no more than a half of a mile to the finish, I chose the wrong one!! This has happened to me on the mountain loop as well. Very frustrating.
Sometimes I don’t initially feel like doing any climbing so I choose a flat route. But get motivated to ride a hilly or mountain loop.
Maybe street signs indicating which loop you are merging onto would help.