You may continue to have days when you feel overwhelmed by grief for many months and sometimes years. But as time goes on, most people will begin to adjust and have more good days than bad. They find they start to have times when their feelings are less intense and they can begin to look to the future. Life will never be the same again following the death of a relative or friend. But it can continue and be fulfilling in a different way.
As time passes, most people reach a point where they are able to remember their relative or friend and talk about them without feeling overwhelmed by their feelings. They start to enjoy things again, feel more comfortable at work and feel able to join in and enjoy different activities.
Things might continue to be difficult from time to time, and you may sometimes feel overwhelmed by your emotions again. This is not unusual, but it tends to happen less often as time goes on.