Is there a way to make myself less indecisive and shop for things that will last?

I am exactly the same way and so is my 30 year old daughter. We both hate to shop unless its for something we absolutely want or have to have. We have to first, be in a good mood. Then, we have to look and feel good with our makeup, hair, and what we are wearing shopping. Once we can get past that, then shopping is easier. We usually go with a short shopping list as well. That way we spend less time trying to decide. We're in and then out.