Disappointed on internships

Hello everyone, I am 26 years old, I have a masters in electrical engineering and I have been working as an embedded systems engineer for the last 2.5 years. This year I started a second masters in oceanography, cause of my love in sea and I found marine robotics should be the next step. Based in Europe, since March I am trying to find an internship to have an Erasmus next year. I have contracted around 45 of the biggest companies( KONGSBERG for example ) and research centers, so far no reply from most of them, I am usually happy to get a rejection email. The deadline is in less than a month.. any ideas? If anyone here is working in the industry I would love to send my CV and get a Feedback.

Thanks a lot 🫪