You know the term DJ in my opinion does not mean much these days. It is a general term anyone can add to themselves. It just says I play music back to back and I can select tracks. Well anyone can do that with an MP3 player by creating a playlist. SO not difficult. What is difficult is being able to read a crowd and select the right tracks at the right time.
There is no exam no qualification for this profession. Along with anything in music and certain arts the only way to prove you credentials is to to show it. To do that you have to persuade someone to let you do that. So go do your thing, listen learn and have fun. Maybe even earn some money along the way. Define to people who you are by what you play and how you play it. Keep the crowd happy and you will be happy.
Keep spinning, scratching, playing, remixing, mashingup and generally loving the music….