Truth be told, a month is actually a vert short time in terms of healing when it comes to the organ of the human brain. if you look at people who have suffered brain trauma, it often takes them years to recover function. The good news is the brain has an amazing capacity to rewire itself and divert functionality to parts that are still in working order. I know its scary, but there is no reason to think your condition is permanent after only one month. You will get better, either gradually or quickly, but you will definitely get better as long as you take basic care of yourself (eat healthy, exercise, keep your brain active).
But I must say you guys have really scared me off taking MDMA anymore. I can relate to a lot of the symptoms the people on this forum with long term problems describe because I have experienced most of them during my own MDMA comedowns, but luickily I have never had them last more than 5 days. But all these horror stories are making me afraid that next time I take it, I won't recover so quick (and heck, even five days is a big price to pay for a 3-4 hour high).