Do's and Dont's of Business...

I just got a new facebook page, but if you liked the old one already, dont worry about it. I got you covered. SO, i might be going crazy business wise right now because i am now obsessed with all things business. Though, im pretty sure everyone in the world has tried creating a business. If you have already, what was it for, and why is it a failure, or successful? Cause i need some tips. Do's and Don'ts of business.