Never go to bed angry. Let go of all the negative thoughts. Allow your mind to reboot for next morning. Think of all the positive things happened to you throughout the day even a smile from a stranger. Even though we fall asleep, our sub-conscious mind is still doing some great work and it is your job to supply your sub-conscious with positivity before you go to sleep.
Wear your rose colored glasses so that your dreams are rosy 🙂