Hi just a name! Maybe doing a bit of self help and working at self regulating might change their minds. I've found some great resources on YouTube, (admins, am I allowed to name yt channels? ) like making a what if diary. I customized mine, and maybe doing an online dbt course, I've heard great things about that and will be asking about it myself when I see the psych in February. A crisis kit is another tool that you might find handy if having meltdowns.
And don't forget that while not everyone thinks you can be cured as such, you can develop your coping skills to the point that it's not a battle anymore *hugs*