Can i go to university without finished high school?
I'm sorry but no, you can't. Every respectable university requires a high-school diploma (or equivalent degree) for students to enroll. Exceptions are extremely rare and apply only to highly gifted students in certain subjects.

However, you can self-study in your free time with more advanced textbooks and online courses. If your home-town has a university, you may be able to attend some lectures as a guest, without being formally enrolled.