[Cr3aTor]

yeah, thats the thing. I dont know c/c++ so i really dont know if i am going to know where to start. Would you recommend to just learn one of them?

Yeah, they're pretty mandatory when it comes to malware, crypters, rootkits, RAT's, etc. And not just that, but if you need to fuck around with memory, file structures and things like that you will need it. (You can do this with python also, but don't forget that python is created in C/C++ xD)
You will definitely have a better understanding on how computers work if you're working with low-level programming languages.