When you are an entrepreneur, you will see things through your critical point of view to try to improve them and be better everyday. We take that for granted. But doing this is completely different from complaining about life, the market, your product, the competition, the government, or the economical situation. Complaining is not creating nor improving. Do not surround yourself with this type of people, they will harm your company mood.
Instead, being positive makes you improve. You value what’s worth in something, and anything that happens to you is wonderful and a learning opportunity. Never stop learning. Try to be better by doing things differently if you want different outcomes from your previous attempts. Be positive. And smile. And work really hard to achieve excellence.