Most small-business owners deal with stress on a daily basis. There always seems to be far too much to do and not enough time to do it. As emails pile up and to-do lists grow, it's impossible to avoid feeling overwhelmed. If you don't learn to manage the stress, it can reduce productivity and even lead to health problems.
Business owners seem to have an especially difficult time saying “no”--even to things that don’t directly benefit their businesses. As you're growing your enterprise, it’s hard to refuse any opportunity, since you are eager to network, get involved, and build relationships that will help your company. However, part of successful prioritizing is learning where to draw the line. Simply say, "I'm sorry, but I can't take on anything else." Practice it in the mirror, and eventually it will become second nature.