You are your own world

Nothing exists that doesn't come out of you. If it doesn't come out of you, it cannot exist.

How do you know what is coming out of you?
Look around. All the things around you, all the people around you, are the result of your creation your stories, your thoughts, your expectations, your feelings, your emotions, whatever you want to call them, at the end it is your own creation. You don't like what you see, then start seing something else.
If you don't like grey, start seeing another color, just like color is easily replacable, your stories/thoughts are easily replacable.

Start making a list of all things you have seen or experienced today, start out with Dominiant ones, the ones you remember and ask yourself when was the last time you had a thought about it, how many times have you thought the same thing, do this with every significant thing and observe your own thoughts in manifested form, and if you can catch them in non-manifested form, even better.