No matter what happens, or how you may think your life is progressing, you must always remember that there will always be doors. Doors are generally opportunities, but sometimes they can be people or places that will enrich your life like you had never dreamed.
I'm a strong believer in the idea that there is a plan for each person out in the world. Each person has their own plan, and they are allowed to diverge from this plan, but only to learn and grow. After all, the planner knows what plan will be best for plan-ee (is plan-ee even a word?). Just keep trying. Keep calling places or people, give them your attention and make your desires known. Sooner or later something has to yield and the tides will turn in your favor when you stretch your sails. But most importantly? I think that just like dating, the best opportunities aren't the ones you're looking for -- but rather the ones you aren't.