It’s down to are you a danger to yourself or others. There is the 72hr hold to evaluate just that but as someone partaking in those evals you can be let go fairly quickly when there’s no evidence of danger to self or others. It’s up to 72hrs not a total of 72hrs required.

If you’re delivered to the Emergency Room after a suicide attempt that is evidence of danger to self. It is also a psych history item that creates a red flag on you being more likely to cross that line in the future. But it’s still not typically enough to commit you. People leave days after their attempts, you can’t just restrain everyone who might go there on a maybe.

Also, every state has different rules on how being committed or chaptered or whatever it is labeled in that state plays out.

You’re allowed to be anxious and weird. Or an asshole. Or all three. Look at Cluster B. It’s such an intense and mentally destructive section of disorders but even being that person isn’t enough for commitment unless you’re a physical danger. Degree of functionality, or ability to care for yourself in, say, your own apartment while living solo also factors in, but even so. It’s not easy or something an ethical psychiatrist would easily entertain based on weirdness alone.