I am very sorry.

Please don’t believe that the other person died because of you, it most probably was for other reasons

I will try to pray a Most Holy Rosary for you asap. Here is my best explanation for suffering from all my spiritual reading: God knows that the deepest misery that he allows us to wallow in can be restored back, as in the book of Job, so he allows us to suffer in order to have MERIT. Unless you are put to the test, you cannot demonstratably prove your love of God in a justifiable fair way. So why does God let us suffer, because he loves us. He says: *“I know you have a capacity to love me, and I will reward you eternally for your time-limited sufferings here on earth, giving no more than you have the capacity to bear, but stretching you to the limits of that capacity so that I have more reason to love and reward you in the after-life and in the future worldly ages. In order that I can reward you and love you more than you can ask or imagine, I ask you: if you really love me, prove it by offering yourself as a living sacrifice for me as did the martyred apostles, Jesus, and Mary, and the prophets of old. Through our sufferings, he breaks us like a doctor breaks a leg that was badly set, in order to build us back up.” *
I know this may not help and I may be sinfully or cynically making light of your pain, which I cannot even feel and you carry a very heavy burden at such a young age. The most profound Catholic theology book on suffering that I have read is
“Dark Night of the Soul” ccel.org/ccel/john_cross/dark_night.html by St. John of the Cross, who lived a very painful life. I hope that you will deeply experience the LOVE, HAPPINESS, MERCY, and CONSOLATION of God in the midst of your grief. May the Blessings of on High be upon you! May the Immaculate Heart of Mary be your protection, patron, Mother, and shield! May the Holy Spirit through the Immaculate Heart of Mary grant you the graces that you deeply desire and surely need!!
*Hail Mary, full of grace, the Lord is with Thee. Blessed art Thou among women and blessed is the fruit of Thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners now and at the hour of our death. Amen. *
Come Holy Spirit, come by means of the powerful intercession of the Immaculate Heart of Mary, your well beloved spouse. Come Holy Spirit, come by means of the powerful intercession of the Immaculate Heart of Mary, your well beloved spouse. Come Holy Spirit, come by means of the powerful intercession of the Immaculate Heart of Mary, your well beloved spouse.
For the sake of his sorrowful passion, have mercy on us and on the whole world! For the sake of his sorrowful passion, have mercy on us and on the whole world! For the sake of his sorrowful passion, have mercy on us and on the whole world!
O Mary, conceived without sin, pray for us who have recourse to thee!
Sorrowful and Immaculate Heart of Mary, pray for us!
*Hail Mary, full of grace, the Lord is with Thee. Blessed art Thou among women and blessed is the fruit of Thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners now and at the hour of our death. Amen. *