Improve your leadership through volunteering or doing an internship
AIESEC is a global platform to develop youth leadership potential. When you join, you can be part of local teams working on a variety of change-making initiatives. AIESEC also offers cross-cultural experiences that last between 6 weeks to 1.5 years and are categorized into the following segments.
Global Volunteer (Volunteer for 6-12 weeks toward the SDG's)
Global Talent (International internships)
Global Entrepreneur (Internships at Startups)
Youth 4 Global Goals (Learn about the goals and take action)
Moreover, as an AIESEC member you can access a global network of thousands of interesting people!
I want to note one important thing: although membership is free, some of their experiences cost money. How much money may vary but if you cannot spend any money at all you may want to consider looking into crowdfunding or fully funded opportunities.
P.S AIESEC stands for "Association Internationale des Étudiants En Sciences Économiques et Commerciales" (French: International Association of Students in Economics and Management)