Your dose depends on your experience level, body weight, psilocybin mushroom strain, and desired effect. You can go for 1 to 1.5 grams of mushroom to experience a mild euphoria.
Get a heroic dose if you are looking for an intense spiritual experience to help you connect with your inner self and surroundings. You’ll have extreme hallucinations, distorted senses, geometric patterns, etc., 2-3.5 grams.
Of course, first-time users are not advised to dive into high doses. They can go for a lower dose and gradually increase the amount on their next psychedelic experience.