How do I prove that I am addicted to something?

Ask a loved one. Most people with addictions tend to have lots of denial about their own problems, many defence mechinisms are use, they rationalize, justify, intellectualize, blame their use on circumstances or others for their problem. Is what you are doing causing problems in other areas, have you tried to stop and can't or feel horrible when doing so. Is life a lot more complicated than it should be!
R u looking fr exuse. Why do u need to prove something? It is not a healthy way to thing. What u put energy in will materialize whether it is good or bad.