Guys, I want to start learning to play CTF( I mean capture the flag in cyber security). The question is how to start? Most tutorials I found said that it should be started by playing a lot of ctf on site, like picoCTF and CTF101. But, after I have tried for a while, I still not understand how to solve them although I learned from solution guides. The quizzes seem to use various techniques.
so…
-how to start learning?
-do I need to have knowledge about any computer language?
-which category( such Web exploitation, Cryptography, General skills) should I start?