The pelican in dreams is a symbolism of the stuff, relationships and every job you do that is too hard for you to cope with. Perhaps you should be more relaxed and stay away from the stuff you do, otherwise you will reach your limits and explode in negative way. The dream suggests to take a break or at least try to be less demanding to yourself. The dream may also indicate some other person who has these qualities and you should give this person an advice that was given to you if you dreamed about it.
Read more about dreaming of Pelican in other dream meanings interpretations.