Quite at a loss as to how to put this, basically I'm 16 years of age and I took my first ecstasy pill a year ago last month, and since I have not gone more than two at a stretch three weekends without taking/sniffing at least one (for the majority I popped/sniffed more than 1). At the beginning for the first (estimate) few months , I could be sniffing up to three or four pills a night with my best friend and I never used to take care of myself while rolling, never bothered drinking water and fell asleep on them constantly. After a bit of research I found that snorting them was doing more harm than good so I stopped and started to stick to popping them. The next couple of months that followed I had a friend that was selling good quality strong MDMA and that was all I took, that and 50/50. I feel now in the last few months when I roll that I can't handle a roll as well as I did at the start, and I am experiencing heart palpitations and waking up with the sweats though I do not know if there are other factors causing these but it seems unlikely. When outside rolling, I am known to be very forgetful, careless I have lost things and one time even blacked out when behind a bush to do a pee. I feel a sort of empty feeling in my head like physically when I go to do something while rolling and I completely forget in the space of seconds what I was to do. I have a healthy diet for the most part and though I immensely enjoy rolling and take extra care now to keep hydrated and in a safe environment, I have to wonder if I'm reaching a point of no return, and if I'm on the cusp of becoming addicted to the drug. Have I done irreversible damage as a result of not using the drug properly?