Karolina is looking to gain more professional experience. Some options presented include doing an unpaid or paid internship at an international organization, pursuing community/voluntary work to gain experience in her field of international relations and politics, exploring careers in EU institutions, meeting people in her field, and taking an online course related to her profession. The document recommends that Karolina also explore traveling and living in other countries in Europe and worldwide to gain a fresh perspective, connections, experience, and ideas.