Help please asap i think i overdosed

IM NOT SURE....IV BEEN ABUSING FENTANYL FOR 2 WEEKS NOW....IM IN A RUSH AND EVEN WORRYING ABOUT MY SPELLING...IVE BEEN USING A NASAL SPRAY BUT I DONT WANT TO GO TO A HOSPITAL BECAUSE IM NOT NODDING OUT I JUST FEEL VERT STRANGE IN THE HEAD...I DID THIS BECAUSE I FAILED MY COMPOSITION CLASS PLEASE I NEED ADVICE...SHOULD I CALL A POISON CONTROL HOTLINE? IM AWAKE AND NOT NODDING BUT COULD I PASS OUT AT ANY MOMENT? IM GOING TO GO WALK OUTSIDE AND WALK AROUND BECAUSE I KNOW UR NOT SUPPOSE TO GO TO SLEEP. I KNOW ITS STUPID TO THINK THE OARAMEICS SHOULD BE CALLED IF I THNK IM IN DANGE....PLEASE RESPONDWHAT CAN I DO TO ENSURE MY SAFETY AT THIS POINT? HOW LONG SHOULD I WAIT BEFORE BED? MY TOLERANCE IS VERY HIGH BUT I FEEL STRANGE AND ITS JUST SCARING ME BECAUSE I HAVE PANIC AND ANXIETY DISORDER AND PTSD...WHAT CAN I DO TO THAT WILL HELP? PLEASE I KNOW THS IS TUPID BUT I DONT KNOW WHAT ELSE TO DO