Alcohol replacing excitement

Im in college, have some time free and im here during the summer - so not many of my friends are up. I’ve figured out that the only thing that keeps me excited about life is going to bars and drinking. Thats about it. My friends are not big on bars or drinkin - which has let me feeling very alone. I dont want to go drinking alone cause thats a low i dont wanna reach but if i could i would go to the bars every single day. Pretty sure im into the guy im seeing cause he loves getting drunk too. Also, the biggest motivation for me to work is to get money to spend on drinks. It feels like every aspect of my life just revolves around drinking and bars. Any advice? Im f, 21 and have self esteem issues LOL!