I would say definitely some great experience here! I would recommend to anyone who is just graduating from under grad to take a year off to gain experience (i.e. volunteer/work). The more hours, the better your application. I did very poorly my first 2.5 years of college, but I had circumstances that I explained in my essays which tied into why I wanted to go into social work. If you can explain why you are unique with your experiences, it looks great! Do you have experience working with patients who have been diagnosed with HIV? If not, I would aim for this.