Quitting my job

Okay so I’m a seasonal sales associate. I don’t really like my job, I hate socializing. I have anxiety so it’s really hard for me. My job should be ending on the 24th but I really wanna quit tomorrow. My boyfriend is going out of town on Monday and I wanna go with him so I thought tomorrow would be the best time for me to quit eventho it’s very last minute. I’ve been having breakdowns from stress and cause I’m away from my boyfriend so much (he works out of town ALL the time) I don’t really know what to tell my boss...but I know that I wanna quit. Any advice? Please don’t tell me it’s a stupid idea, I kinda already know that but if you knew about the breakdowns I went through, you’d probably understand more.