How to deal with the mourning....

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My grandfather passed away some months ago, well three exactly and I still don't know how to deal with his loss but I try to do my best so here I am . We were very close and for me he was more than a grandfather he was a father at all, also because he raise me.
I'm still Suffering when I think or talk about him, posting about him here is sad too but I need to remember him for dealing with his death also if it's hurt.
For deal with his death I actually use some strategies, surely the first thing I learn is that the pain it's normal and I must respect and live my inner pain.
But if I think deeply to his death the pain will eat me alive so I need to deal with it.
I try to think to other topics,so I watch Tv and I read and I do the things that I like, that's one think that we can do for deal with the death, another is taking care of ourselves, death it's horrible but it's true,life goes on, so we must try to take care of ourselves, eat well, sleep enough, keep us clean.
Live step by step and day by day, after a big loss we must live day by day without worrying too much about the future, doing simple tasks it's helpful.
Another suggestion is to tal about pur pain, talk with friends with other familiars, explain freely the pain you feel and if it's too much always ask for help, actually I'm in therapy and it's help a lot also if I'm still in pain for the loss.
Another thing, take your time, there is no right time for stop to suffer for the death of our dear ones. Everyone have his own time, respect your pain.