Will storing too many things on my phone (such as text messages) increase battery consumption?

Definitely. If there are too many text messages, the opening speed will be slower, which wastes a little bit of power, which is generally ignored. If there are too many things stored in the memory card, the opening speed will definitely be slower. But the main thing that wastes electricity is some software running or software that starts automatically at boot. It is difficult to install too many useless software. If you play with the computer frequently, you will know that there are many software that you cannot use. Gradually, your mobile phone will be full of your favorite software. I wish you a happy gaming experience. . . . . . . . .