Meltdown help

I have recently been  diagnosed with Aspergers, which is a relief that I'm not going mad but finding it hard to except it.

As newly diagnosed what I was  experiencing I now know I am having meltdowns. I know I can't stop them (I think) They are wearing me out. Can anyone please give me any advice on how to deal with them. I'm feeling like I'm ready to blow tonight and it scares me that I don't know what I will do.