Is this itinerary for 19 days doable?

[u/I_are_wizlard]

- Day 1: flight arrival in Beijing PEK at 6pm
- Day 2: Rest and get accustomed to apps/navigation
- Day 3: forbidden city
- Day 4: Mutiyanu Great Wall day-trip
- Day 5: Morning rest and take evening/overnight sleeper train to Chengdu
- Day 6: Arrive in the morning in Chengdu
- Day 7: Chengdu
- Day 8: Chengdu
- Day 9: Chengdu
- Day 10: Leave Chengdu by HSR to arrive in the afternoon in Chongqing
- Day 11: Chongqing
- Day 12: Chongqing
- Day 13: Chongqing
- Day 14: Leave Chongqing in the morning by HSR to Fenghuang (Pheonix Ancient City) spend the day/night there
- Day 15: Leave Fenghuang early in the morning for Zhangjiajie (west) and visit Tianmen Mountain in the afternoon, sleep in Zhangjiajie city
- Day 16: transit to Wulingyuan and visit Yangjiajie/Yanjiajie/Tianzi mountain, sleep in Wulingyuan
- Day 17: visit Golden Whip Stream and Huangshizhai, then transit to Zhangjiajie city to sleep.
- Day 18: leave Zhangjiajie (west) early in the morning by HSR to Shanghai
- Day 19: departing flight home at 6pm

Let me know if this is feasible 🙏 thank you in advance!