For college students, possessing a realistic expectation of their career at a company is extremely difficult because they have never worked in the corporate world before. Sure, many college students have had internships and part time jobs before, but it is not the same as being in a full-time career.
If you're gung ho on quitting cold turkey, make sure you've got plenty of gas in the tank (and can keep filling it up). Common signs of an empty tank are summed up in the acronym HALT (Hungry Angry Lonely Tired). Also, if going cold turkey has failed you before, or if it sounds particularly painful, try other methods.