sex life is terrible

Sarah
I've been sexually active for a year. After breaking up with my last ex, who I lost my virginity to, I've had a REALLY hard time getting and staying wet. With my current boyfriend, our sex life is basically nonexistent. I have to masturbate while he showers just to be wet enough to have sex with him and even then, he lasts waaaay too long for me. He's never cum out of the 10 or so times we've had sex and every time, my vagina is left sore and it just sucks. I have no idea what to do. 
Update: yes there's foreplay but it doesn't work for me