Step 1:
Go to the linux forum.
Step 2:
Ask which distro most people are using. Be sure to post what kind of hardware you want to run it on.
Step 3:
Select a recommended distro and make the individuals who recommended it your coaches. Put them on the hook for walking you through it. Post specific issues as you go. You will have a working linux distro within a week (probably in a day) with this approach. You just gotta adopt a coach and keep after him. I think I see Peter volunteering in another message BTW...