Before you can optimise, you must fix bugs. The same applies to product development, as well as life.
When you're in the mood to make better decisions faster: 1. Write down a problem. 2. Write down a solution. 3. Write down steps to take now.
When solving a problem, see the big picture. Draft a map. Look for patterns. Spot an error. Fix it, or decide not to pay attention to it.
When not sure what action to take, check with your values. Then, look up your goals. Then, your strengths and weaknesses. Assets. Then, decide with clarity that's now there.