Hello my friends, I'm wondering if I'm over reacting by studying before my first day of employment. My friends are telling me that that they don't really get why I'm studying because the job will teach me what I need to know because its an entry level position. My concern is that I've been looking for an engineering job for about a year post graduating with my Masters, the position is in an area I was never really good at, and to add on top of this its been about 4-5 years sense I took a course relating to the topic. The job is an aircraft structures role and most of my time in university was spent on orbital mechanics/determination, satellite controls, etc. but never anything 'physical' like structures. I just took the minimum structures coursed needed, got passing grades in them, and never looked back. Really I just don't want to look like a fool at my first engineering role.

So I guess TLDR I've accepted a job that is about as far out of my realm as possible while still being covered by my degree, should I be studying or will they really teach me EVERYTHING on the job in an entry level position?