Grieving loss of sibling

I miss my brother so much I had a bad night last night I tried to reach out to people and no one was willing to spend time with me or they were just asleep or busy living their lives and I ended up at a bar but my cousin did come and save me made sure I got to lay my head down somewhere safe…I don’t know what to do when this feeling comes when I miss him so much I don’t know what to do…any advice …