diagnosed with oesteoperosis at 15 years old … 3 years ago

let me just tell you a bit about me , at 13 i was diagnosed with anorexia nerves , i spent time in a psychiatric inpatient unit at 15, where i was diagnosed with oesteoperosis, i gained to a healthy weight and they said if i keep it up i wont be damaging my bones further. I had a relapse and dropped to yet another low weight, made to gain it all back again, and then from then to now i am still a low weight but i eat a normal amount. I typed on google(ik i shouldn’t trust it) that you can die 15 years after diagnosis, i had a severe panic attack when i found this out, my body started to hurt , my vision went blurry i blacked out etc, Is this true, am i going to die at 30. especially because i made my bones even worse, are there any ways of fixing my bones and not making them worse , will dairy help? i’ve been dairy free for 2 years now and i heard it could be a good start. I’m just really scared of being in a wheelchair in the next few years please help