Sometimes i don't like remembering my dreams because i get tired from it. But during the times I want to, I ask before I go to bed. I have a dream journal....I write in the dream journal that I want to remember my dreams. Then, I Say to myself aloud that I wish to remember my dreams at least 3 times right before bed. I know it sounds cheezy, but i swear it works. It may not work the first night but keep at it....it can take up to 7 days depending on how strong your kung fu is. If after trying it 7 consecutive times you do not remember your dreams, you should try hypnosis because something is blocking your path and needs to be removed so you can remember your dreams.
Did you try asking?