When does residential/inpatient treatment become necessary?

[daisyduck]

I'm losing it.
I've been diagnosed with severe depression and anxiety for quite some time. I'm on meds for it and i have therapy once a week.
I'm used to the panic attacks and insomnia and nightmares that come with the two.
I also self harm. (well i'm 5 days clean. yay..... )

The thing is things are much worse.
I hear voices. I mean they're in my head, but the converse with me and each other and it's terrible. I have really bad intrusive thoughts (unintentionally thought up 27 ways to kill myself). I daydream to the point of which i lose time. I can't focus on anything. My mind is going 219438598 miles an hour.
I also kind of dissociate sometimes, i guess? like i'm watching myself...and my mind is connected to my body, like i'm on autopilot or something.

Yesterday during one of those episodes i almost killed myself. I planned it and everything. Then i snapped out of it, it was strange.

I'm losing it. I'm trapped in my own mind and i'm absolutely terrified. I can't deal with this anymore.

i have no idea what to do....

[OMFG!You'reActuallySmart!]

When it is deemed the person cannot function due to mental impairment or can be a harm to themselves or others. It's sort of an ambiguous term because plenty self-harm but many who are diagnosed don't become inpatients. If you were to try suicide but failed, you could become an inpatient if it's suspected you're going to try again due to an underlying mental illness that isn't responding to current treatment AND cannot wait a few weeks to see their psychiatrist.

As you probably know, there are 2 types: voluntary and involuntary (they're self-explanatory). If you're involuntarily admitted, you may stay longer than if admitted voluntarily. If you're admitted involuntarily, you can be given treatment (medication-wise) without any consent. This can happen for voluntary admission if it's needed.

Obviously you're struggling but it's not my place to suggest whether you should seek such care. It may not be the answer you wanted, however, I'd feel ridiculous making a suggestion based on 1 post I read.