Python Own Tools.

Greetings, I have started learning Python for a lil bit of time now . As of now i do know how to read progams :) But i cant write them myself. ( might be becausei dont have much expierence ) But my question is, how do people actually come up with a progam like " SSH Bruteforce, Server /client attacks, password crackers, trojans,virusses." etc. I do know how to find tutorials but that feels more like just copying ther code and knowing how to read it. But i couldnt write the same code when i close the tutorial and do it on my own.

Do you guys have any links or tips on how to make ur own hacking tools. I am a beginner / intermediate.