from my personal experience:
get a solid math-based background in poker first (note I said POKER, not SIT N GOES, there's a difference)
I recommend The Math of Holdem by Collin Moshman and Douglas Zare
then play a few formats before you decide which one you're going to have a real go at
(even though I started out in SNG's, I recommend starting in cash)
then watch as many videos as possible, this will be your primary source of education
continually study, review, analyse and work away from the tables to improve, participate in hand evaluation forums, attend free coachings
about SNG's: if you only read ps.com articles you'll be a micro breakeven or small loser at best, if you happen to crush your first 1k games, its just variance, so don't get excited