Can my boyfriend have me committed?

I know I have really bad outbursts caused by my anxiety and I know it's probably for the best but there are certain things I've heard they'd probably end up doing to me I'm afraid of and I really don't wanna go, but he says if I don't go on my own then next time it happens again (I throw things when I freak out) that he'll have me 5150d. I'm 19, can he actually do that?

Can my boyfriend have me committed?
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