On the contrary, I've learned that it always ends! While each challenge may seem like the most anxiety provoking and difficult one yet, you also conquer each one. Pretty cool, in the big picture of things. From those initial apps, to your first client, first oral presentation, comps (!), to dissertation defense, internship apps and interviews- I look back and think "holy crap- I did those things!" Even amidst all the worry I have about the current stressor.
So take it a step at a time, being sure to appreciate each one.. Maybe after it's done. 🙂