Barriers

This is something I constantly think about.  How am I going to establish a competitive advantage?  What issues am I going to face?  How difficult is it going to be to overcome these barriers?  Is it worth attempting, or are these barriers/risk too high?  Should I consider a different location (ie, Naples, FL instead of Miami, since they do not have as many detail car washes)?  I also need to learn to write things down more often, or remember them long enough to be able to write them down.  Many times I will be in the middle of doing something, such as taking a shower, driving, or something else that does not allow me to write down my thoughts, but by the time I try writing them down, I have forgotten what it was I wanted to say.  I believe I have the knowledge and capabilities to conquer any issues/barriers that may arise in any endeavor I decide to take on, so I try not to stress over these things too much.  That is probably the biggest thing I need to change in my life.  I tend to stress over small things that do not matter, but take larger issues as they come and just deal with them.  It makes no sense to me, but I need to not worry so much about the small things, and look at them on the same level I do the large things; Take them as they come.