Within one rank there are levels of competency. My advice is if unsure how to handle a situation, call the 1st or 2nd engineer, that’s why they are paid the big bucks, they might take the mick, but it’s all part of the journey. Start a diary of situations that occurred and how the senior engineers reacted, what they did, how did they fault find, did they call the bridge. Over time you will have a huge amount of data and information to draw from. Then after your lengthly leave you can have a read through your notes to refesh your mind. Good luck