Answered by Shaykh Abdurrahman ibn Yusuf, CA
In the name of Allah the Inspirer of good.
Pray to Allah in the depths of the night from the bottom of your heart. Then try to do things as promptly as possible. Furthermore, plan to do things before they become due. This will force your soul to fall closer to moderation.
The following dua has been related from the Messenger (upon whom be peace) for protection against laziness among other problems:
اَللّهُمَّ إِنِّيْ أَعُوْذُ بِكَ مِنَ الْعِجْزِ ، وَالْكَسْلِ، وَالْجُبْنِ ، وَالْهَرَمِ ، وَالْبُخْلِ ، وَأَعُوْذُ بِكَ مِنْ عَذَابِ الْقَبْرِ، وَأَعُوْذُ بِكَ مِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ. 
Allâhumma innî acűdhu bika minal-ajzi wal-kasli wal-jubni wal-harami wal-bukhli, wa a'udhbika min adhabil qabri, wa a'udhubika fitnatil mahya walmamat.
O Allah, I seek refuge in You from weakness and laziness, miserliness and cowardice, anxiety and sorrow, and I seek refuge in You from the torments of grave, and I seek refuge in You from the trials and tribulations of life and death.
Abdurrahman ibn Yusuf
 أخرجه البخاري في : كتاب الدعوات و مسلم في : كتاب الذكر والدعاء
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