Unfortunately some of the best lessons are learned through failure look at Abraham Lincoln:

• He failed as a business man - as a storekeeper.
• He failed as a farmer - he despised this work.
• He failed in his first attempt to obtain political office.
• When elected to the legislature he failed when he sought the office of speaker.
• He failed in his first attempt to go to Congress.
• He failed when he sought the appointment to the United States Land Office.
• He failed when he ran for the United States Senate.
• He failed when friends sought for him the nomination for the Vice-Presidency in 1856.

I hope this has provided you some inspiration - Good luck on your new venture