some advices:
1.
Post a calendar and clock close by. Try using a large calendar that can be posted on your wall and written on with dry erase markers.
2.
Have papers and materials for only the task at hand on your desk.
3.
Tidy your desk space at the end of the day, noting what you need to work on tomorrow
4.
Label file names clearly, and try color-coding your folders for better organization. File alphabetically.
5.
Avoid leaving spare chairs around your desk to minimize distractions.