When you have an important but stressful matter to deal with, you can procrastinate or meet the challenge head-on.
Avoiding to face the matter head-on causes unnecessary worry and anxiety. You start fabricating in your mind the potential consequences, many of them never happen. Nonetheless, you play them out in your mind, compounding your stress.
Instead of fabricating different consequences and worrying about them invest your energy addressing your challenge head-on and you will be pleasantly surprised that it is actually not that bad.