How much am i overracting?

okay i have OCD but not like most people think of it. Im scared that ill hurt someone..and i have OCD thoughts or hurting someone but i know i would never do something like that..and i know its wrong..im just so scared of fear that it becomes OCD. lke last i was sooo scared that i was gonna kill a baby if i put the babys dummy to close to its nose, and it would stop breathing...however i gave the baby its dummy..but i think i placed it alittle abit closer to its nose on perpose..it was just a tiny tiny bit closer to its nose from its mouth,..just a tiny bit closer for like 2 secs and i freaked out!!! on a scale of 1-10 how much did i overract? im trying to leanr when to overract and when not to..and yes im on meds and getting help..lots of it..im only 16