I've Just Been Diagnosed and I Need Help

I'm 19 years old, a rape victim who has always had protected sex aside from a sexual assault that happened a few years ago. I was just diagnosed this morning with herpes and my life is now permanently different. I don't know how to handle this. I have talked to some friends and each one is supportive, telling me this does not in any way change their perception of me. I am trying to figure out how to tell my most recent partner about this, and I'm struggling. I'm aware this is a conversation I am going to have again and again throughout my life but I have no idea how to go about it or what to expect. This diagnosis makes me feel so alone. I know it's extremely common but I feel like I will never be perceived in the same way I used to be in romantic relationships. I feel like the only people who will not think less of me for it are the people I already know. I can't imagine any of my future partners ever accepting this, because to be honest I'm not sure if I would be supportive if I was told my partner had herpes. I am so scared, I don't want this to control my life but it feels like it already does. Can anyone give me advice on how to cope with this? I've only talked to people who do not have the disease but I would love to talk with someone who understands what this is like.