Stay positive,
Check out to see if any of these apps can help you? Kind of cool about the Ted talk subtitles. Also liked the CaptionFish...
Top 10 iPhone Apps for People Who Are Deaf or Hard of Hearing | The Accessible Technology Coalition
I'll pray your surgery will be a great success. To be frank, I only listen to the first 5-7 minutes of my pastor. Would he/she be willing to send you the text of his homily so you can read it?
All the best...