Advice needed as a highschool freshman 🎓

Hey , so a little about me .I am a highschool student from Pakistan (Karachi).I need help and advice to push through my academic year with ease and also to start on building my academic profile for getting into an Ivy league.Since I reside in Pakistan and attend a highschool with little to no opportunities for extracurriculars that will genuinely get recognized at these schools, I want to know how I can build my profile in other ways (please try to suggest low prices courses and free opportunities).

My current activities x extracurriculars:

Taekwondo athlete ( green belt with a blue stripe)
Assisting at the tkd academy along with being a graphic designer for them .
Swimming (occasionally, never participated in any competitions that will get recognized)
GGF: global green firm school ambassador.(It's a environmental sustainability organization, based in Pakistan working it's way to expand internationally).
Interests:
At the moment I am learning how to code in python and java ( any more advice to self learn would be appreciated )
I am also beginning to search for cyber security courses ( advice n tips are welcomed)
I am really into chess and play with my friends and siblings actively so I was wondering if I should start competing to add on my student profile though I am not that good but still , should I give it a shot ? If so , how can I do it ?Also how can I possibly sign up for low cost competitions as the ones I searched for locally were priced at 2000+ atleast .
I am an avid reader ( I mostly reader sci fiction , classics , mystery , thriller , adventure).I was hoping to leverage my love of books to make it an extracurricular opportunity in some way ??!(Advice needed)
I was thinking of starting an insta page documenting my journey of self learning different things online by myself, is this a good idea ...if so then how much on a scale of one to ten? Aside from that I was browsing and found an idea to make a online portfolio so should I do that ?
I am also a writer , I have won several school initiated competition in writing essays so how can I put my skill of writing to a good use ?
I am a jack of all trades, master of none .So basically I switch hobbies and interests extremely fast and basically am into EVERYTHING! so any advice to narrow my interests will be welcomed ;).(Not necessarily narrow it , just learning to use it to good use rather than a futile asset to my name).
I am interested in astronomy, cyber security, law , computer science, finances , coding , software development ( I also really like the idea of working for government organizations like fbi agents and stiff but I have a goal to be very stable and also earn a good sum which can't be possible if I do pursue this passion of mine that stemmed from crime documentaries and books though I am hoping I can do smthg of not a lot in it ?! Help please!)
I also got the idea to make a community app ( an app that has the list of residents of the local area , service providers, guards and everything basically) so how can I get started on that , any online resources?