5.) Ask a colleague to give you a dedicated intro session. Not just a random “I show you some stuff on my PC” but a real one. Typically a nice way for the colleague to reflect on their learning as well and/or prepare a public talk :-)

6.) Be aware that almost no one really knows. They are all bluffing, they are all biased. There are exceptions but they are super rare. Even someone 2-4 years in a specific job will get his stuff done but still struggle with some concepts. On Management Level it gets worse as those guys tend to not have the time to digg into it