Tomorrow I am going to have a delicate surgery and I am scare-can you help me feel much better?

I have being in the hospital over 1 month in a role all ready and tomorrow I am going to have a delicate surgery 2 in 1 chance...Had anyone had a gastric feeding tube ,like from the stomach or from small intestine- they will p a tubing for nutritional support.Excuse my spelling ,english is my second language.Have any one of you gone through this -having to be fed by a tube inserted in the stomach out /or from duodenum? Please tell me your story..Im using the hospital computer lab...need encouragement...I am soo scare...My problem is that my pancreas is giving up on me and I am starting to feel the complications...please- say a prayer for me here-Type one so I can read ...Im scare ...Help me.Thanks in advance...