I am not sure it is something that can be rushed through, although some people might move more quickly than others. You might be able to find some books on grief that can offer suggestions for dealing with your feelings. One little book I have offers suggestions for coping such as: 1) Keeping a journal, 2) Using music--listening to music you enjoy, play an instrument, compose music, 3) do artwork/crafts of some kind, 4) meditate or do some other spiritual thing such as prayer or reading scripture, 5) write letters--to the loved one who has died, to God, to other people (They don't need to be sent.), 6) exercise, 7) scream, such as into a pillow, 8) read--about grief and/or read to escape from grief such as novels or magazines, 8) talk through your feelings with others.

These are just some suggestions. There are other ways, too. You just have to find which ones are helpful to you. As you are finding, some will work for you and others will not.