Is this actually alcoholism?

I downloaded an app to track my alcohol intake, it usually sat around 8 standards a night but I wouldn’t say I was overly drunk (possibly just a high tolerance), it was just a nice way to relax after long days and helped me unwind and get some work down, however this app classified this as binge drinking.

My friends and I had always joked that I was an alcoholic and I always just played along for the laughs and I don’t think we all took it seriously, but now I’m double thinking that. I’ve been sober a few days now and feel the urge to drink to relax.

Is this legitimate alcoholism, or am I just young and stupid?