New Quitter (2)

Hello everyone, I have never been on this site before. I have just quit smoking approximately 2 hours ago and have a lot of questions/concerns. I read the message board before deciding to register, now that I have registered,quit smoking now, I am nervous feeling that I have committed to stopping not only to myself but to all of you. In reading the board i have a few mixed feelings, there was one individual who seemed to quit a few times and then disappear from the message board the person is now back and there seems to have been a few nasty responses to the individual returning after not being successful in previous attempts at not smoking. Anyhow my first question, how much participation is expected, as stated I am a new NONSMOKER, and I am already feeling irritable expecially when I feel participants are receiving negative responses. Also is it true that I may have trouble sleeping soon after not smoking, I have a few more concerns but will start with the ones above, looking forward to lots of support. I am used to having a cigarette when drinking any liquid, soda,Herbal cigarettes, tea ect.. what is a good way to counteract this situation. my mouth is feeling a little watery but dry at the same time, any help would be appreciative.