"Time heals all wounds" and "God helps those who help themselves" are often vocalized during difficult times in our lives...yet, they are not biblical, and, honestly, are more harmful than helpful.
God...not time...heals all wounds. Grief is a journey, and we will all travel that road.
"Now is your time of grief, but I will see you again and you will rejoice, and no one will take away your joy." - John 16:22