Academic
There is no substitute for discipline, especially near the beginning of an undertaking. It is of the utmost importance. Lapses must be met with appropriate severity or the problem will never be dealt with.
Academic
There are many distractions from your studies. At this time you must summon up extra reserves of self-discipline and keep you attention on your work. Avoid unnecessary socializing in particular. It will use up energy you need to learn, and distract you from your academic pursuits. You must balance study and entertainment in order to succeed.