Talk a little to your husband and whoever you can. Maybe find a grief counselor if you think that would help? It really hasn't been all that long.

I have helped myself through really bad experiences with reading. Maybe you can find emotional support there. Can you maybe write literal little notes of thanks to cousins/others, just say you're doing okay? Anything that you can think to do that is a little bit outside your own hurting heart might help and reassure others. I don't think fb would be easy for me either, if you say/do something for one there, you have to do it for all or they respond and you feel like you have to respond to their response, etc. and that may be too hard right now.