Learn more about the human/soft side of the business because that is one of the most important aspects of business success. The world of finance is not science. There are models and theories in finance but not laws. Focus on continuous learning and development.
Being able to condense ideas into a short and succinct description is better than just being a spreadsheet expert. The socialization side of things is very important in this industry, make friends and keep them.
When you are new in your career, it is time to enhance your skills. Whenever a chance to get further knowledge comes up, go for it. Be open and flexible to new areas.
Critical faculty, skepticism, and questioning have got to be one of the key traits for people in the industry in the future. Your understanding is now more important than knowledge.