Explanation: When swimming, you don't need to get up and take a new fresh breath since you take in oxygen from the water. This allows you to stay in the water as much as you'd like. In good purposes it can save drowning victims. In evil purposes it can help you drag down a person to the depths and have them drowned. This power helps you escape the world, if even for a bit, since you have grown to despise it so much.
You have been a beaten dreamer with aspirations crushed. Now you try to control your hopes because you don't want to get hurt again. You feel there is no hope for you in the future and have no real goals. But unlike the Controller of Time you do still feel, even if it's mostly negative emotions. You have few friends, if any, and feel you are unable to speak about your troubles. And unlike the Transformer, you don't feel happiness nowadays. All seems to be filled despair whereever you go and you are bitter becaue the world has failed you. It didn't turn out the way you wanted it too and you feel betrayed. It is also likely the feeling of betrayal comes from past relationships where you were left alone in the end.
Negative aspects: Since you are highly depressed and not letting out your emotions properly there is a possibility for cutting, to let the emotions out. Also, if the feeling of despair grows to strong you might consider taking your life.