Congratulations on your first lucid. Dont worry about "failing", almost everyone's first few lucids are like this, it is very short. What I recommend, if you are doing the DILD method, is to increase your reality checking in real life so you can make it a habit for your dream. You can also use a mantra to say all day, such as "This is a dream", etc.

Try doing other methods of inducing a lucid like the WILD method. It is my favorite personally, if you master it, you can have a lucid dream every night.

Good luck