Seek the best advice possible. Good advising provides clear maps to the practices and norms that govern life in your department and on campus, thereby making it easier for you to determine where you are going and what course to steer. In seeking faculty advisors, look for individuals whose research interests and personalities are compatible with yours. When combined with a personal touch, an advising relationship can evolve into a mentoring relationship. Get feedback on how you are doing as a student.
Some departments conduct such assessments of how students are doing quarterly or yearly.
If your department lacks such a procedure, either lobby for one or conduct a self-assessment and then ask that it be reviewed either by your faculty advisor or the department graduate advisor. Seek to learn more about your profession be it in academia, industry, or an organization. Learning about the professional norms of your chosen career is important. Professors can provide information about disciplinary norms and professional expectations in their chosen field. Professional meetings and conferences are another good source of socialization.