I convinced my best friend to try some molly with me for the first time. He wasn't big into drugs, smoked pot every once in a while. The night we took it, we also mixed in some pot, which I don't recommend your first time (have anxiety? Pot can either help you or completely fuck you over). He started having a panic attack. He paced around the house freaking out, saying shit like "this is so fucking stupid", drinking a ton of water, punched a wall, and then he broke down crying. After he got over this initial hurdle, he actually had a great time. All of the emotions of his past started coming out, things he never spoke about and never confronted. About his dad, who is the one in his family with anxiety issues, and about everything. It was actually a really beautiful moment in our friendship, and he calls it one of the best experiences of his life and something he does not regret doing.
About a week later we were hanging out and we went outside to smoke some weed. That's when it happened again. He started freaking out, drinking tons of water, and just all around impossible to knock any sense into. He just had to ride it out for about an hour. After that event, he spent 3 months without leaving his house. He says he experienced derealization (Google it) and the overwhelming sense that nothing was real and nothing mattered. This, he says, was one the worst experiences of his life and from that moment on he has not touched an illegal drug, although he's alright on prescription shit like oxycodon, for some reason. I don't think weed would affect him in the same way anymore but he developed a strong phobia and can't even smoke if he wanted to, which is fine. Obviously, he's not going near MDMA, even though he had such a great experience on it.
Even with anxiety, this could be hugely beneficial for you. While in the past I would have endorsed it for anybody, this event and a couple of other ones that I'm not going to get into now led me to be much more cautious about it. I will never tell you to do it and that you will be fine. You may not be fine. If that's a risk you're willing to take, then you as an adult need to own the decision to take it. Do not take it on the recommendation of anybody else. He says he doesn't blame me and that he doesn't regret the experience at all, but I will always feel guilty. I won't take that responsibility with anyone else.