"many entrepreneurs would tell you that even considering the possibility of failure undermines your chances of success." Although I'm overly optimistic about m

"many entrepreneurs would tell you that even considering the possibility of failure undermines your chances of success." Although I'm overly optimistic about my own company just like every other entrepreneur, you can't be naive and think you'll never face failure knowing you have a 10% chance of success. Starting a company is all about failing, pivoting, and moving past it. So I'd say that you have to expect failure along the way and be ready to overcome it.