If your blockade or lack of motivation feels the same as procrastination, then the following may help.
We procrastinate because thinking about the chore or homework or dream journal entry is causing a stimulus similar to that of pain in our brain. So in order to avoid this pain, we simply don’t do it. What helps is to focus on the process instead of the product. Don’t think about the dishes waiting to be washed, think about how you will devote 20 minutes of your time, from 9:00 to 9:20, standing in front of the kitchen sink with wet hands. Don’t think of the annoying essay you still have to finish by Monday, think about how you are sitting at your desk Saturday and Sunday morning writing stuff up. Don’t think about your DJ that lies open with “Day 1“ glaring at you, think about how next morning you will be writing in it with the beautiful color of your pen.
Notice that I also linked a specific time with each process to make sure when it’s going to happen. If you form an intent with this specific detail laid out, it’s harder to postpone it. Also what helps is to think ahead a little: With which excuses can you possibly come up on the spot when you were supposed to write down your dreams that prevent you from doing it? Then counter those excuses well in advance.
Argh the pen is on the desk and I have to get up first to get it? Put it on your nightstand the night before.
The light is too dim to see anything? Open your curtain slightly before going to bed do you will have sunlight in your room the next morning (I sometimes do that).
I’m too sleepy and always prefer to roll over back to sleep? Make the alarm really annoying and put it far away from bed so you must get up to shut it down.
Anything to help yourself is fair game. Notice I said “help yourself“, not “force yourself“. Dreaming is fun. No force necessary. But a little aid certainly can only make things better ^.^