Send multiple applications
By sending multiple relevant applications, you will increase your chances of getting an internship.
Therefore, apply to all those internships that you find interesting and relevant to your profile. However, you must not forget to apply in quality – not just quantity. Make sure you tailor your application (including CV & cover letter) to the internship roles you apply to.
If you find an internship role that you’re really interested in but feel that your education background and/or professional experience doesn’t really match the requirements, don’t give up. Try to highlight other skills that might be beneficial for the role.