Luiza Palacio I just see a problem tho, I'm on EU server tho, so don't think you will be able to add me. I'm sure there will be plenty of other people that can help you. Enjoy playing the game.
But here's abit of advice to start off with before doing the campaign or anything else, just level up playing crucible to level up your character to level 20, then do the milestones, it don't matter if you win or loose, as you will still level up to 20, once there then start to do your milestones and campaign etc etc etc.