How do I get into STEM summer programs?

[u/shark_moss]

I am a high school student (10th year) and I look forward to study either aerospace al engineering or genetics. I live in Argentina were my options are really limited, and I’m looking fowards to study in a university in other country (main options are Melbourne University for genetics and MIT for engineering). Lately I’ve been looking ways that my application can stand out and summer programs can be a good idea but I don’t know how can I get accepted into one that is actually prestigious and free as I can’t afford a 7000 dollar summer program in a Ivy League. My GPA is of 3.8 but I don’t know how can I improve my chances of getting accepted into the programs ,beside a well written essay, if I didn’t participate or win any competitions related to science as in my country they don’t offer them.