Upcoming operation to remove my oesophagus and nearly all my stomach

I had the news today I've got to have an other operation.  I have barretts oesophagus, sliding Hernia and cancerous tumour in my stomach. The tumour sites were removed in August.  But the Barretts esophagus is Cancerous so in two weeks I will be having major surgery to have the oesophagus and nearly all my stomach removed!!