Looking at what you have said, it sounds very much as if dreams to you might simply be a source of entertainment. Your attitude itself may be the reason why you are no longer dreaming. What many people do not seem to realize is that dreams are the Lord'sspiritual vehicle for correcting your thinking in order to align you with Him.They carry important psychological Self knowledge and need to be studied and interrelated correctly. They will show you how the ideas and beliefs you hold are working for you or causing you problems in life both on a physical and emotional level.
Since dreams come from a subconscious area, they are usually created by much emotional and fanciful,thinking. It is also possible that at the moment you are thinking quite realistically thus lessening the need for "corrections".
If you want your dreams to come back, you need to impress upon your mind the idea that dreams are of value to you - for the information they can bring you. If you state these facts to yourself every day a few times, your dream could reappear soon.