First let me say how very sorry I am at the loss of the brother you loved so much, and depended on.
You can take comfort in religion, and in your memories of your brother. Grief is a difficult thing to deal with, and I know it sounds like an empty platitude, but time does help. When my father died, it took me a very long time to come to terms with his death, especially since my family had very little time to come to terms with his illness before he died. You have to take your time, and remember the good times you had with him. Don't try to struggle on by yourself. Talk to others such as family and friends. Express how you are feeling. There is nothing wrong with being hurt over the death of someone you are close to. We grieve because we will suffer over the loss of them in our lives, and because we will miss them. This is natural, and you should allow yourself to cry for him, and to mourn for his loss.
Maybe when you are ready, you could go speak to a grief counselor. I didn't do this, and I ended up having a breakdown. When I eventually went to see a counselor, it helped me tremendously. The thing you must realise is that you will never fully get over your loss, but the pain will ease, and you will be yourself again, believe me, I know it sounds hard to believe, but it will happen. Sometimes he will spring to your mind, and you will have that tinge of pain and loss, but this too is normal.
Take care of yourself and your family dear, and once again I am so sorry for your loss xx
Experienced the loss of my father and uncle.