How to contribute to Linux kernel or opensource?

Hey Guys,

I am A Computer Science Student who has a lot of interest in CS.

I have learned quite a few languages (logic is clear grabbing language was not a big deal).

I like to study CS in depth by knowing how it works and all.

I have learned JAVA,c,c++,Python,MongoDB,GIT,bash

I have been using the Linux system for a long time won't say I am a Linux pro but not a newbie too.

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Doing random stuff coding made me realized m not doing anything to make the community grow or everything I do makes me feels wasteful.

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I felt I should start contributing to Opensource or Linux kernel Building. I searched a lot on the internet found myself a bit confused so If you guys can help me by telling me where should I start?