As salam Alaekum, About the prayer for the dead Muslim. I have lost my parents for few years and I learnt that the best way to remember them is to say this رَبَّنَا اغْفِرْ لِي وَلِوَالِدَيَّ وَلِلْمُؤْمِنِينَ يَوْمَ يَقُومُ الْحِسَابُ
And do give some sadaqah on their behalf.. I recently lost my half bro, i would like to know if their is any special way to remember him or anything i also need to be doing on his behalf.. may I should forget about him because he died at 23..