Good job posting here for support @Pedro! It is natural for the first few days to be difficult. Your body is addicted to nicotine and is going through physical and psychological withdrawal. It helped me to stay busy - do lots of physical tasks (pushups, walking and chores). Snack often - stay hydrated and keep your blood sugar up. And stay educated. Our addicted brains will tell us that we need to smoke or will minimize the harm of smoking. Don’t listen! Fight back by remembering the facts:
You are in the right place to regain your freedom. The cravings will ease in time. You can do this!!