do Du guys know how to fix my problem?

...I have no idea what Shimejis are...
But I'm gonna guess is little Chibi things on your desktop.
I have a few solutions:
Go to college. Du can never take your eyes off your textbook.
Learn/make a new language, yen syvin keida Keo tiem, dec yin raisu Deutsch o u otro tiem.
Draw
Productivity apps
Or....I guess Du can just Löschen the Shimejis on your desktop...:P