Just got back from China and sharing a few tips as a person who worries

Just got back from my first trip to China

Alipay over WeChat for payment, but you still need both apps. Set these apps up with your payment before entering China

Cash was never turned down and I always got change back - keep cash in your pocket just in case

Trip.com for all your attraction / train bookings - book few days ahead of time as tickets as most are limited

Taking the high speed trains was super easy and cost efficient

Great Wall - took a $25 DiDi to Mutianyu at 7am and we were the first people on the wall. At 10am the legions of buses arrive. Took a $25 DiDi back to city center.

Terracotta warriors - DiDi there DiDi out was more efficient than taking a tour.

Amap - just as good as Google Maps - I saved all my hotels, restaurants, attractions, and all other addresses before I left to China - same with DiDi app

Rednote App - used that to find out where all the foodies eat

They know you are a foreigner and will be prepared to tell you how much anything is.