I'm tired of my IT engineering life so I have decided to quit. But I want to make a career as an ethical hacker, what should I do?

You can become an ethical hacker. Just do training from any institute and attend more workshop and seminar on ethical hacking. Practice more and more, and you will become an ethical hacker.

Quitting is not the solution to any problem. Complete the course, as you'll be needing a degree for any job of you interest too.

Don't quit that course, because you need a degree for your job. To become ethical hacker, just do training from any institute and attend more workshop, seminar on ethical hacking. This is the thing which is more practical not theoretical. So, you have to work hard to become an ethical hacker.