Teen relationship advice?

Michelle
Hi guys, im 16 years old and i have a wonderful boyfriend that i love.. we will be together for a year next month and im deeply in love with him. But sometimes i worry that things will change or something will happen. I know he loves me just as much and he never does anything to hurt me but i want to know if thier are any woman out thier who have been with thier lover since highschool? And if so please share some advice ☺️ i feel like we will last for a very very long time. We both cant imagine life without us in it.