There is no bad light. There is spectacular light and difficult light. It's up to you to use the light you have.
You have to learn not only from your failures. You must also learn from your successes.
Sometimes without shooting a picture germinates in your head. Other times, you keep taking pictures of the same thing and watch the images mature and grow.
If you don't have a camera, the best thing you can do is describe how great it looked.
You need minimum color for maximum effect.
You always end up with too many pictures to edit and too few that you feel 'got it'.