Becoming a responsible person is taking responsibility for your situation, for your past, for your present , for your future, for your actions, thoughts and deeds. There is nobody to blame for anything accept you. A very brave hearth is needed to make such a statement, but this is the path for the brave hearted only.
At the same time set everybody responsible for everything they have done to you, they have said to you, they have thought about you. They may be your friends, teachers, strangers, neighbors, enemies, even your parents, confront them also with their responsibility or lack of it.
But In the end you are the final chooser of every choice you have made in your life!