Yes, it is absolutely possible to code your own game. As a beginner, it will be easier to start with something simple like on R-o-b-l-o-x; instead of trying to write a full PC game. It runs Lua and its code is run as scripts which means you can put it anywhere.
Having a fake license results in a criminal charge and will affect your future if wanting to work in school. some of the charges will be lagre fines and points of your license.
