If your GPA is a 3.0 (or near this) you should consider graduate school. Graduate school is a way of specializing in your field and will increase your employment opportunities.
To earn a Masters degree in graduate school typically takes 2 years of full time study (4 semesters), or 5 years for a Ph. D. (doctoral degree).
First Steps
Visit the Center for Career Development to investigate the job field you are interested in and find out the various jobs you could apply for with a Bachelor or Master degree.