It is possible to over think about LDing. Try not trying to go lucid for a few days, and focus on reality checking and dream recall instead.

Focus on relaxing your mind before bed, and tuning it to your surroundings throughout the day--weather it be sounds, people, the shape of things. Try to stay in touch with what you're observing and question it's reality.

If your recall is good the next few days, try to pick up on any reoccurring objects/places/people. If you LD again, don't try so hard to do anything, but rather go with your dream the first few times. Awareness is key. Control will come after. Good luck-