I strongly urge you to read this article because you're not alone in this. The same situation happened to our beloved Prophet (peace and blessings be upon him) so this situation may help you feel better, you're not alone...
The Year of Grief
http://www.allaahuakbar.net/muhammad/year_of_grief.htm
Allaah Almighty is the source of Strength. Remember that you whenever you feel alone, Allaah is with you.
Therefore remember Me (by praying, glorifying, etc.). I will remember you, and be grateful to Me (for My countless Favours on you) and never be ungrateful to Me. (Qur'aan Surah al Baqarah [2]: 152)
Verily, in the remembrance of Allah do hearts find rest. (Surah ar-Ra'ad [13]: 28)