I lost my older brother when I was in my early 20's, and both my parents has since passed as well.

I don't like the phrase 'get over' either, but you absolutely have to come to terms with the loss. Carrying the weight forever is pathological.

Everyone and everything you know will die. Yet I find ways to both enjoy life, and help others with theirs. Grief will still find you at times. Let it wash over you, and on. You will remain. What, then, to do with your time?