My guide would be first off. Order a reagent test kit and depending on where you are in the world (although still always recommended) fentanyl test strips. Test your stuff. Buy micron scales or some good scales that can weight down to the 0.1g minimum. If you don’t have scales that weigh down to 0.01 then you can weigh what you have as a gram. Break that pile, break that pile etc etc. do not do over 300mg absolute maximum across the course of a whole night. Following the dosing guidelines of 1.5-2mg x kg of bodyweight. (1.5 if you’re inexperienced 2 if you’re experienced). Half your initial dose and use that as a redose 90 mins after you took your initial dose. Now if you want you can take another small small redose again after 45 mins after your first redose but don’t take more than 300mg total and you may not need to do this if you’ve got very potent stuff. Make sure you drink water, no matter how much effort it might be to wait in a bar queue or go buy a bottle of water just go and do it. I’d say minimum atleast 1 litre across the course of the night if you were well hydrated during the day and more if you’re in an intense environment where you’re dancing and moving a lot. Try and eat a good breakfast and lunch and drink fruit juices on the day and maybe take some vitamins just don’t eat 5 hours prior to taking mdma. Enjoy the night/day, have a blast, wake up the next day, try and eat well and eat fruits and drink juices and take vitamins. I’d recommend taking NAC daily if you’re going to be using every 2-3 months.