I first played this in a slightly older version where on embark you got a breakdown of different soil layers. I read a quickstart and I tried it a bit and backed off. Then a while back I thought, hey it's a work in progress, let's see what has changed. Well, a lot, so I re-read a quickstart guide and I just kept trying. Since then I just keep on trying whatever I feel like, occasionally checking the forum for fun stuff to try. The graphics scared me first, but now I sometimes have to explain what is so funny about @d& (axedwarf charging a demon, wardog got there first and bit it in two).
And seriously, ask anything you like here, or in the df gameplay questions sub-forum (little questions thread for preference), though it's also prefered that you use the wiki and forum search function first. We're always very friendly, especially if we can help you get into more trouble.
And really, the wiki is your friend! DF Therapist is your best friend! Dwarf Fortress is not and will try to destroy you, your fort, your dwarfs and your social life.
More or less official motto: Losing is fun!
Before I got some skill I was losing forts before year 3 through invaders, flooding, tantrums, cave-ins, lack of booze and more. It's part of the fun to find out what went wrong and do netter next time around.