Try to avoid seeing the prices daily, otherwise it should be stressful. You just check the prices weekly and if you see the prices fall hugely then try to do average.
True... True... Very many inexperienced players in this market or simply beginners often suffer such a disease, as checking their block for 30 times a day. Bad sleep at night, break down on loved ones. This should not be done in any case. If you do not cope with this, then it's better to change your occupation. Losses must be transferred cold-bloodedly and be ready to lose everything here.