Hi,
Here are some best advices which you must follow in your colleges:-
1) First year is very important because CGPA or %age improvement is little bit tough in subsequent years.
2) Make sure , that when you graduate it is not even close to your biggest success.
3) Maintain balance between academic and extra academic activities which helps in your personality development.
4) Keep a check on your weaknesses - Identify them and work upon them like:- English, Interests, etc.
5) Don't let yourself be known because of your alma-mater. Let your alma-meter be known because of you.
6)Don't choose role model(s) among your seniors , everyone is different.By making role models, you automatically restrict yourself from attaining the heights you have the potential toachieve. Many make the mistake of choosing a role model and copying him/her and thus lose their originality.