My heart goes out to you. I lost my brother too. My brother didn't die from suicide but a drug overdose. But in either case, the loss is just so sudden and unexpected and senseless. It hurts like hell. The only thing I know for sure is it that the pain won't always be this intense. You'll always miss him but this pain will be replaced with loving memories of happier times. In the meanttime, be kind and gentle with yourself right now. Take care of YOU. Grief is a process. WE can't hurry it along but it does get easier with time. Take good care of YOU right now. Your brother would want that for you.
Hugs and understanding..
Mary