[saikiran]

Thanks in advance

[h2m0nRe-d0b1e]

I doubt it's even possible. But I'm also interested. In any case, the specifics of the question are needed.

[throwaway123]

Get good. And no, it's not a troll answer.

You need to know networking, different protocols and services in use, how they work, how misconfigurations can be exploited.

Learn how web applications and web requests work, experiment and explore different technologies, learn some php and JavaScript.

Learn the most common vulnerabilities and how to test for them, then go deeper.

Enumerate, enumerate, enumerate.

There's no one way to do CTFs efficiently, it's all a culmination of your skills and knowledge.