About some advantages and disadvantages of some subfields of psychology

Psychology has a lot of subfields .Each of it tries to explain poeple behavior and mental processes in different ways .I think it is not very easy task to choose which sphere of psychology is the best one ,because they all have some prons and cons. For example school psychology is not an esasy work ,first of all ,because it is job with children and teens.As we know,nowdays schoolers are quiet agrssive ,nerveous ,but they dont realize what they need a help,so psychologists must work very hard to achieve progress.However ,working with schoolers have a good points.It helps to understand better childrens needs,hopes ,the way they are thinking.Most often psychologists helps schoolers which have problems with learning or with class friends .If we go deeper to every subfield of psychology ,we wil find what each have it's advantages and disadvantages.