How is your life different now than it was during your 2 years at university? How long ago were those 2 years - a couple years ago, or more than a decade?
Most universities like to talk about the rule-of-thumb of 2 hours study per hour of instruction. Full course loads are 12-18 hours of instruction per week in this part of the world, so the university would like you to spend 24-36 hours per week studying. In reality, study time may be 30-90 minutes usually, and 2-3 hours once or twice per quarter; this means 6-18 hours of study most weeks, and 24-54 hours during finals.
To break it down:
Sleeping - 56 hours
Working - 40 hours
Instruction - 15 hours
Study - 15 hours
Transportation - 20 hours (1 hour to work and 1 hour to return home, 1 hour to and 1 hour from university, including buffer for leaving late or being stuck in traffic * 5 days a week)
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Total - 146 hours
1 week - 168 hours
Surplus - 22 hours
During finals, you would have no time. Even people who really enjoy college find a schedule like this almost impossible to keep.
