Drone: Eachine 58 (101 crash test into walls)

We do a basic 101 test flight with the Eachine 58. Which is a cheap clone of the DJI Mavic Mini 1. We have problems with the trimmings initially and crash into a lot of walls of a derilect building. Then we manage to get the drone stable. Width area - 25 feet, Length - 60 feet is the area we are flying in.