If you can't take care of circumstances and not allow them affect your vision, then you are not prepared yet for an achievement.
Before venturing a particular business (for instance) or whatever, you may begin to think about circumstances that might be beyond your control. My reply will be this; If you are ready to succeed in this Life, you must always be ready for whatever comes your way. And do you know, that makes you a real person or Entrepreneur that you say you are. If you can't take care of circumstances and not allow them affect your vision, then you are not prepared yet for an achievement. Emotions are good but not very good in making decisions that will determine your action. Especially, decisions that some persons will term 'risky'. But will you believe me if I tell you that risk can only be real if you don't have a goal. Hence, I advise that whenever you want to do anything, whether big or small, be it business or other life endeavours, SET GOALS. So that, if eventually you encounter any challenge, you will easily find a way out and get to your destination... this is because...