Guild Wars 2

Hii all,

dont mind my grammar pls.
I got the game as a gift and i realy enjoying it. got my guardian boosted to lvl 80 with the HOT expansion. I did all the missions from lvl 10 to 70, i need to do lvl 80 yet.

I did some pvp like 90 unranked matches like 60-65% winrate or something.
I really enjoy pvp, a friend made me a build for DH and it goes pretty well.
I tried to change things up so now and then, but only to get rekt and switched back to my old build.

Long story short:
I only know pvp unranked and some leveling content missions.
Tried fractals but i had no clue what i was doing and some people were getting mad about that.
and World vs world? what am i supposed to do. where is everyone XD

conclusion:
you can see me as a person only did pvp unranked and nothing else. I want to see more from the game like WvWvW and dungeons and fractals en ranked pvp. but i have no clue where to begin, i know there is a lot more than the unranked pvp.

I am so clueless with this game.
is there like a beginner guild or can someone explain sum basic things to me?

Cheers!!!