The reason why the three combine to transform into water is that they transform into the moon of Geng and Shen, and water lives forever in Shen. I am sure of this. Your Ding fire is too weak, and its pattern is to sacrifice oneself and serve the official. We should not judge your horoscope in terms of Ding, but in terms of sacrificing oneself and serve the official.
If it is combined into the five elements that you like, it will be like the icing on the cake. If it is combined into the fearful god, it will aggravate the disaster.
Good luck