How long it is since you started your dream journal?
You need to give time to yourself, dont rush, if it's not long since you started dream journaling, you're getting adapted to it, yet. Try to keep writing down in your DJ, It'll only bring you benefits.
Look for some techniques that might apply to you, I would recommend you the FILD technique (the only one I can recommend is this one, since I've tried it.), or the MILD if you works nice with mantras and words (I don't, hehe).