IsabellaLinton wrote:
I punched and slammed my head last weekend. It was the first time I've done that for a long time, and I wasn't proud of myself but I couldn't stop it.
alobaby, All you can do is hope that your friend is in a safe place when a meltdown occurs in your presence. Let them know that you understand what a meltdown is, and that you care about their safety. I think that's the best form of support that anyone who experiences meltdowns can receive. If someone told me how to have a meltdown, or tried to change my behaviours under pressure, I'd feel misunderstood. If they talked to me at a calm time and expressed emotional support / understanding overall, I'd feel much better -- even if it didn't change my instincts during a meltdown.
HeroOfHyrule,

I'm sorry to hear that.
I think this is really good, realistic advice. In my experience you can't always control what you do during a meltdown, so for a lot of people there's not much you can "do" when one happens, if you can't prevent one/prevent it from getting that bad. You can kind of just find a "safe" place to do it (if you can even get to one) and that's it.
Whenever people recognize that I can't really control what I'm doing when I have a meltdown like that it makes me feel a lot more supported and actually helps me deal with my meltdowns better, because I don't immediately focus on being embarrassed about what I did afterwards and then continue to work myself up.