Finding white hairs :(

I’m 24F and love my red hair- I feel like it’s something that makes me unique and it makes me feel so pretty. A few weeks ago I found my first white hair sticking straight up- freaked a bit but didn’t worry too much. But found this long hair the other day. Does this mean I’ll be white completely by 30?? I’m about to be 25 and am already struggling with the idea of aging so this is spooking me :((