One trick I learned to slow down time is to keep a journal and write both about the future (either as a narrative or plan a schedule) and about the past (either as a journal entry or an audit).

This could be about anything, any minute detail you encountered throughout the day or goal you are planning - the number of clouds outside or an application to graduate school you're thinking about or seeing someone interesting on the street.

Do this regularly, each day for 30 minutes, for 2-3 months and you will find that your memory improves by 10x and your days feel much more fulfilling and purpose driven.

The reason I think this works, is that by both explicitly planning and examining, your brain will create its own BS filter and guide you to things that are naturally fulfilling and worth your time.