This is best answered by an old saying I first read while I was a teenager working my first full time summer job;
"The optimist see the opportunity in every difficulty while the pessimist sees the difficulty in every opportunity".
Another way of stating this; are you easily overwhelmed by your responsibilities (this can be school, work, marriage and etc.) or do you accept the challange in doing all you need, to be successful in these opportunities. The mental aspect, sometimes called attitude, can determine the quality of your life, so I encourage the optomistic approach.