Please ask someone familiar with the main city of Chongqing to help!

Points--mine

No. 15--I suggest you stay at Shangqing Temple. There are quite a few hotels here, ranging from high, middle and low-end, and there is a bus to the airport. Bus (departure)

No. 16 - It is relatively close to Jiefangbei. It costs about 10 yuan to take a taxi. There are many buses: 181, 104, 322, 132, etc. You can also choose the light rail, which takes 10 minutes

It is relatively troublesome to get to the University Town. You have to go to Shapingba first. 265, 215, 501, 210, etc. are all available. Each university in Shapingba has buses to the University Town. There are too many to mention. Ask your sister. Even better; if I'm not wrong, she will come to Shapingba to pick you up, or she will come directly to Shangqing Temple

No. 17 - sleep in, rest for half a day, check out at noon for dinner and prepare to go to the airport (40 to the airport minutes)

Have fun