You have had some good answers so far. I often recommend try several live distros. and picking the one that 1. meets the needs of your hardware the best, 2. One that is pleasing for you to use and 3. the one that best allows you to accomplish the computing goals you want.

That being said I recommend starting on this page
https://linuxjourney.com
and most of all enjoy the journey!

VirtualBox® actually does not care. Oracle puts out versions of it which run on everything. The essential idea is that "here is a fully-functional but free tool" which allows you safely experiment, no matter what your "host system" is.

And then, that's precisely what I recommend: "Experiment!!" Since you cannot possibly harm anything on your host system, you are now free to do absolutely anything without fear. (Or, inconvenience.) And that's probably the most important thing: "jump into the water, knowing that you are in the shallow end." You need to get over your "fear of the unknown." And, most "distro" architects have done a pretty darned good job of letting you do that.

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Re:
Thank you ,
for the hint.
I will of course use the course.
Thank you Paul.

Try earn some certification, also you need to decide which diraction you like
User environment or server. Good luck