Truely, we can have the life we want. We can set our goals and aims that we want to achieve and if we strive sincerely, we will succeed to achieve them. But sometimes some situations arise in life that act as obstacles in the way of achievment of the aims. Our wisdom and foresightedness will definitely help us overcome the obstacles in path of our aims and goals.
Spiritually speaking, those obstacles are, in fact, created by us only either in this life or previuos lives (if you believe in re-birth). But if you have absotute faith and trust in the Almighty Power, you will definitely get His help or guidence in overcoming the obstacles.