I see what your saying, something that would definitely make you happy for the rest of your life if you put everything you had into by taking a risk but with that comes specific obligations..... Right??
Hell no. Happiness is only relative to other emotions. If for the rest of your life you were never angry, sad etc, your happiness would not go away, yet it would not remain the same. It would, in a sense, make one quite apathetic. You know no matter what happens it obviously will not detur the way you feel, but the way you feel will lose it's luster without anything to remind you of how rare and valuable that certain happiness is.