Reload original workspace

Hi experts @staff I have done a huge mistake accidentally I have overwritten the main CMakelist and package.xml from my Src directory (home/usr/catkin_ws/src) with the CMakeList and the package.xml from the my_robot_control package which I have created during the class.
Now when I compiled the ws with the command “catkin_make” the screen displays me a lot of errors. So the question is:

How Can I Refresh the system to original, as it started before begin this class?

Thanks in advance

Well I have solved this issue looking in older posts…and using manual commands to delete devel and build directories. As @bayodesegun explained in:
How can i reset catkin_ws?

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