Is it okay to do mdma 8 times in a month?

No: You are listed as 38 years of age, getting a bit on the elderly side to be using Exstacy. It is a stimulant, and recently adulterated or extra-pure forms called "Molly" have appeared, especially in the northeast, which have put lots of people in the hospital.It's not ok to do it ONCE, let alone EIGHT TIMES. See your health care provider to discuss getting help for your drug problem.