MDMA and other drugs use at 14?

As much as I hate to admit it, I’ve been using MDMA regularly for the past few months—about every 2 to 3 weeks. MDMA has been my drug of choice, in between those breaks, I’ve also used other substances, such as: weed, myristicin, 3-CMC, DXM, 4-CMC, and 4-MMC (though only once). Looking back, I regret ever starting using, I started using these substances as a way to escape deep emotional pain and other issues I’ve been struggling with. At the time, it felt like one of the only way to cope, and also I though the whole “drugs are bad for you” talk was bullshit, but now, I’m starting to regret my decisions

I can’t go back in time, but I’m worried about the effects this has had on me. Lately, I’ve been experiencing memory problems, worse depression than before I started using, muscle aches, and difficulty making decisions. On top of that, I’ve noticed that whenever I feel stressed, my first instinct is to take something. I feel like I kinda trained my brain to rely on substances instead of dealing with my emotions in a healthy way.

I guess what I’m wondering is—have I done permanent damage to myself? I’m 14, and it scares me to think that I might have messed up my brain long-term. I don’t want to keep going down this road, but at the same time, stopping feels overwhelming. If anyone has advice on how to quit and start reversing the effects, I’d really appreciate it.