Kruppz

I'm a college student. I often have a lot of things to get done and enough time too! But I always have this problem of not being able to decide & prioritize effectively as a result of which I end up not completing all the tasks within the given time frame. Prioritizing itself takes a great deal of my time. I also have difficulty maintaining proper balance between academic and non-academic interests. How do you guys go about setting goals & short-term priorities, & allotting appropriate time for the same?