Broken initial beginner quests

1. sor my english is bad.
2. I start in Blood River.
3. I got the quest, but I did not understand how to accomplish it. In search of an answer, I went through the northern gate to the world map. Since then, I have three tasks:
a. Bring Robert to Edvard
b. Go to Soltown
c. Take the dagger to Aerie

Now I can not go back to that village of the Blood River. There are other objects there. I understand that this happened because I went to the world map. But why does the game give it to do if the quest for the beginner from this breaks down? I looked at the yutube people get into the boat under the bridge. But I did not know about her, she was not on the map. I broke the quest. What should I do next? I'm a begginer to this game.