Genital Herpes

It's possible that I have genital herpes. I've only had one sex partner, my boyfriend. 
I have bumps on my vagina. It's sore and itchy. A little oozy... 
I'm honestly terrified. I don't know what I'll do if I have it. Can anyone offer advice? I never thought I'd have to deal with this, I've always been careful. 
What's it like to live with genital herpes...?