Long term relationship

I’m in a very serious long term and healthy relationship for the first time! I am so happy :) but I am wondering what do you talk about on a daily basis so that you don’t get bored? Sometimes I feel like I might be boring but my life at the moment revolves mostly around school and most of the time I text him when something happens. How do you prevent conversations from dying out when you are with each other a lot? Am I the only one who struggles with this? Am I overthinking it?