It sounds like drinking is having a negative influence on your life so it's great that you are taking a good hard look at the situation. Regardless of if you consider yourself an alcoholic or not, it's always a good idea in life to leave behind things that cause you distress.
You are still young and I wish, at your age, I had been honest with myself about where I was headed. My regular drinking started when I was about 23 and continued on through the rest of my 20s. I'm now 30 and have made the decision to give it up for good. I went from only drinking on the weekends to get buzzed to drinking on the weekends heavily to binge drinking Friday through Sunday. That quickly snowballed into doing it every night to the point where I had to quit.
As others have said, now is a good time to give it up and see how it goes. Speaking from my experience, I would suggest you cut out alcohol now before it gets worse. It's not worth the hangovers and anxiety the next day.
I'm glad you are here!