If you have an old laptop or PC why not give it a go? You could start here: www.linuxmint.com Another option is to install something like Virtual Box on your existing machine and try out running it as a virtual machine or two. 2 CPUs, 4GB of RAM and 20GB of virty disc will work for any Linux distro as a VM to start off with. There’s also VMware Workstation - there’s a free version. Do discover the joy of snapshots/checkpoints which allow you to roll back failed changes!
25 years ago the options were rather more limited. I started off dual booting Windows and Linux but I don’t really recommend that these days, unless you want to run a gaming rig with both. Few people can afford two lots of top end hardware! I left Windows behind completely around 2004 or 5.