I, too, talk too much too soon. I have spent many times beating myself up over talking too much and telling stuff I should have held back on until I know a person better. I'm sorry you had to experience this on your trip. Don't be so hard on yourself, but I would be careful about drinking too much in the future. It loosens tongues even more than usual. Try not to judge the others. They may not be thinking badly of you at all, after all, they may just feel compassion for you. They may just not know what to say. Don't hurt yourself, you won't feel better. Believe, I've been there, too.