Agree with Bruno.
1) Think of the stories that you have to demonstrate during the FIT interview: Leadership, Personal Impact, Entrepreneurial drive, etc.
2) Define what will you need to get this experience and what is available: team projects, case competitions, projects with real companies, testing some startup ideas, volunteer work, etc
3) Try to select the most impactful ones. Remember - it’s quality over quantity. Another case competition will not make you standout. Launching something, testing a startup hypothesis, achieving some real traction - this may be impressive
4) If there are internships in you school - start looking for the company in advance. Ideally you should try to get an internship in consulting since the interview process will be easier and centralized
5) Don’t forget to leave the time for prep. Networking with consulting companies, case interview prep, etc. Most of the candidates fail because they are underestimated the time and effort needed to prepare