Cyst on pancreas

my doctor just informed me that I have a cyst on my pancreas and schedule an edoscopy. 7mos ago I had my left kidney removed ( open radical nephrectomy/ an a rib ). T3aPnx grade 3 . also a nodule on my left lung they are watching . I'm scared and now all I can think about, is this cyst cancer too. How do people do without a pancreas ? Or can you do okay without? I don't no the size or where it is located in the pancreas . I won't know until end of  July. thanks ! 

Bonita