This app was mentioned in 7 comments, with an average of 1.14 upvotes
Your internals are 30 marks. you just have to score 3 marks out of 100 overall. your school will never fail you. They will definately pass the students by increasing your internals or even manipulating your test marks. Schools will have a bad name if some students failed. PS - you still have term 2
Now 12th is the most important grade in your life. Your career will depend on it.
Since you at least have internet access, you can watch videos on youtube (It is free). There are lots of people out there teaching the concepts clearly. Dont trust your school teachers since I can see it is not a good school.
For computer science you can practise prgramming on this mobile app.- https://play.google.com/store/apps/details?id=app.compiler
You can try these apps and see if they work for you. compiler app sololearn
This works great and supports other programming languages. Ad free to
Found this app .. its an online compiler, still looks more elegant and resourceful. Innit? https://play.google.com/store/apps/details?id=app.compiler&hl=en
I use this one, totally recommend it