From February 12 to 24, visiting Yunnan, I want to go to Tengchong, Dali, Lijiang, Jiuzhaigou, and Shangri-La. How should I arrange it?

There is ample time, you can take the Kuming-Lili line, and finally go to Tengchong.
Time is abundant, can take the Kunming-Dali-Lijiang line, and finally go to Tengchong.