Why do I always forget that I have doctors/dentists appointments

I swear, I always forget that I'm having one until like the day or the week before, OR even LAST minute. It's not that it's some secret that my mom or my doctors hide away, I just forget ;-; I just feel so retarded and I don't even got time to mentally prepare myself and actually COMMUNICATE with the folks at those places. Literally my mom told me that today I have a dentist appointment to get fourth of my teeth removed so I can start using those rubber band things and start moving up my jaw yk? FORTUNATELYYYY it's not too obvious but UNFORTUNATELY there will be some needles involved and I fucking HATE needles, like I wanna run away from that shit. But yea, wish me luck chat at 4:30 when my appointment starts and shit :P

Hoping that there will no type of bs happening where I don't get the teeth removed lol