Girls, how do you cope with heartburn? I can't stand it anymore, I'm a…

Girls, how do you cope with heartburn? I can't stand it anymore, I'm a nervous wreck — whatever I eat just sits in my throat, the bitterness is awful, sometimes it makes me want to vomit! And drinking is pure torture — any drink only makes it worse! I've tried milk, sunflower seeds, chewing gum! Nothing helps! I didn't have this in my first pregnancy! I can't wait for the first trimester to be over!