It is difficult for one to get over the loss of their loved one with them feeling all empty and loss, and the traumas they had gotten from it.
Grieving is a process that has to be gone through for the pain to subside eventually. Grieving period differs between individual depending on your personality and coping approach, your beliefs, nature of death. Some may get over grief within weeks some might take months or years to end the process. It should not be rushed or forced; it should happen gradually over time. Regardless the type of grief you are experiencing, you should give yourself time for the process to happen naturally.