After having worked with Salesforce for 2 years intermittently, I finally found a new job as Salesforce consultant in a new company. This is why I recently asked a question (a bit controversial) about which books to read to improve myself at working with Salesforce. I'm also working on trailhead. I'm currently at 55 badges.
So my question is: To your mind, what's the most important things to do before starting my new job in about 3 months?