@fkamiah17 @JackTheCat @MadeyeTheCarnaptious @rhys Heya! What computer do you have?
Depending on how tech savvy you are, the easiest thing is to buy a computer with Linux preinstalled like the ones sold by StarLab, etc.
Otherwise pick a distribution (flavour), download it, create a bootable USB stick, and boot from there. I’d recommend going with Fedora. Others include Ubuntu and elementaryOS, etc.
G’luck + ask if you have questions :)