In a relationship with Allah s.w.t
There are 3 reasons why when we do a do’a, it wasn’t answered.
1) It will be answered, only it will take longer then you expect.
2) It will not be answered here in this world, but will be answered in the afterlife, in Akhirat.
3) It is not answered because it is to prevent you from a tragedy that was caused by what you prayers for.