Hmm you can try this:

Before you sleep at night, imagine all your problems, stress, and everything that's on your mind about waking life. Imagine putting them into a small box, and that you will forget them while you are sleeping. Whenever you wake up, write down any dreams you recall, and avoid moving around or looking at other things. Focus on something, like just focus on looking at your dream journal. The more you look and move around, the more your dreams will slowly slip away and be forgotten. Tell yourself every night that your thoughts in the imaginary box will not bother you, and focus on your dream goals instead. If you find yourself thinking about them, quickly think about something else to divert your attention