Can I apply to Aussie colleges without studying there?

Is it possible to get into australian universities for foreign students if I didn’t study in Australia before? like, I didn’t do any Aussie qualification, just my school studies here. do they accept that or not?

Yes, it is 100% possible. You don’t need an australian qualification to apply. Most universities there accept students from all over the world, they just look at your 12th scores, IELTS or TOEFL, and sometimes a personal statement.

Australian universities for foreign students usually have a special international admissions section on their site too.