College life gives different experience to everyone. Some people will get hurt in the last, some people will get the enjoyment in college. Some people will take college as serious and played a very good role in the college. College is not serious as well as not an enjoyment place. Your parents are sending you to study in the college. The only payback to your parents is to study well and get good scores in the exams. I am not meant to say you have to study in all the times. You have to enjoy, but you have to spend some time for studies. College is the only place you can enjoy and you can learn.
College is the basement for your career. Learning in the college will help you to survive in your work environment.Have some extra curricular activities along with studies. Improve your communication skills. Communication skills is important in the interview aspects.
Two hours per day is enough to spend your studies. Just have a read about the topics discussed by your lecturer in the class. If you read everyday, it will be easy to study in the exam time. I have already posted how to utilize the Study holidays. That will help you only if you read the discussed topics in the class.
Have fun in college, Spend time with your friends and concentrate on your Studies also. Utilize your time in college. Spend time outside only you have finished your assignments and other works in college.