Worrying about something that might not happen, or might never happen, is really a waste of time. For various reasons, I've spent the whole day remembering how I felt a few months back, and how much the stress and worry I put myself into had both aged and drained me. One good thing about such events taking place is that it teaches you just what you are prepared to put up with, what you can and can not deal with, and what you are willing to do to either bend or change the outcome of things.
It is rather unsettling when you discover some characteristic or trait in yourself that you never thought can exist in you. It is heartbreaking when you realize you are only human... and humans are horrible creatures. Humans make the worst possible choices sometimes, and other times they make a bad situation even worst. It is a habit of ours... one of our many charms. The silver lining to all this? Now that you know what your "new" limitations are, you can work to fix, alter or change them. No harm has been done, no permanent damage has been made. Time heals all wounds... or wounds all heals. Either way, you know that you can withstand it, and in the future, you will be better equipped and hopefully a little wiser. One thing I learnt: Not to worry prematurely, if what is dreaded is to happen, then you'll have plenty of time to worry when it happens.
See? Already wiser =)
And just to put a smile on your face, a Cyanide and Happiness comic: