I work in the fire protection sector of the oil/gas industry as a Project Manager. My background is in Mechanical Engineering. I would say the #1 lesson I had to learn when I started was how to apply the mantras of business and efficiency to my work. Engineering is worthless to the capitalistic world if it doesn’t translate directly to energy/cost savings or operational efficiency. Also, the higher-ups are often too busy to walk you through the process when you have no idea what’s going on. Make a list of the things you’d like to understand better, then ask yourself how to find that information. Sometimes it’s online research, sometimes it’s pulling out your old fluid mechanics books, sometimes it’s asking the right person. Just break down your tasks in this way and start getting them done. Use Excel to break down budgetary items, use Outlook to track your tasks, etc. And communicate with your project team and the customer as a priority. Good communication can solve a lot of problems. Good luck.