You might like to start by acknowledging that there are "Ladies" as well as Gentlemen flying civilian aircraft and some of them are going to be your Captains / Training Captains for the next decade! Whilst your at it be prepared for people alot younger than you to be senior to you.
You may also like to prepare yourself for the fact that shouting at people doesn't work, nor is anyone deferential to your previous rank except ex Airforce mates.
You will get people sucking their teeth at high angles of bank etc because passengers don't like it nor do the management. Be prepared for your skills to be judged in relation to safety and passenger comfort rather than other datum’s you may be accustomed to.
The fact that you have sought advice and acknowledge that there will be differences between your old and new lives indicates that you will probably be one of the good ones. Enjoy.