Lots of courses are there, you can do self learning also if you are having interest in cyber security.

But to get a perfect job in cyber security you should always be practical oriented and you should also have some basic knowledge about cyber security.

If base is strong you can easily develop your carrier in any field with any technology.

basic of cyber security are:-

1.Should have knowledge of networking.

2.should have knowledge of operating system(Windows, Linux, VM etc)

3.some basic programing language such as Python, C/C++, java. learn basic not in depth

4.then go for ethical hacking. cover all the practical orientation.

If you want you can do self study and other options is do certification and build knowledge about cyber security.

If want more data then direct message, I will provide everything in detail.

Hope it helps you Thank you!!