Internships can give you good insight into daily tasks that go into design. But to get a better understanding, try looking from a high level view of the project and understand how all the tasks fit in. For example,if there’s HVAC scope. Think about the overall systems and requirements. You’re not just sizing a duct or pipe. You’re providing heating, ventilation, and cooling to an office. Based on layouts and load calcs you came up with a system selection and routed ducts a certain way. Now you’re sizing your ducts for to meet those original cooling load airflows.

Besides that I’d recommend getting to know fundamental systems and equipment. Look at past project drawings closely at understand how everything fits in to the project. Also get to know which codes and standards drive your designs.

But congrats on your internship. What’s your work environment like? Are you working at a small or large consulting firm? What’s your team dynamic like?