On average, people change careers fields three to four times in their lifetimes. A career is really is series of jobs and other events that string together to form a larger pattern. You may have an ultimate goal of becoming the CEO of a major corporation, but to achieve that large goal, you need to set smaller and more readily achievable goals first. You can never completely map out or plan what will happen to you next, so look first at the short term and evaluate the next level of skill development you hope to achieve. Students who have been out of college for 5 years have gone on to do many different things.
Many students go on to pursue law and medical degrees, as well as other fields of graduate study.
Still others have taken time to travel around parts of the world, teaching English as a second language or getting involved in world volunteer organizations. There is no one right path to follow. You make the best decisions you can based on the information you have at the time. There are few decisions that are completely irreversible. There are also no guarantees.