Stay off social media and you won't be part of the AI algorithm. Also most of the AI stuff is in it's infancy stages and can be abused, it would take a madlad to implement this in the real world any time soon. Give it another 30-50 years for it to become mainstream.
They can probably evaluate your suicidal risk even if you're not on social media. I mean just the fact you're here at SS could be enough. We know this forum is a big target and they keep trying to take it down, and mass surveillance could very possibly already have all our emails and IP addresses that we used to sign up here with. But they aren't using the data as usual, they just hoard it for some reason, which shows they aren't trying to help us as they claim to be.
And they can use stylometry to very possibly find out your real identity, it can be automated by bots. And lots of other methods to deanonymize us all.
I came here knowing I am not as anonymous as I wish I was, and I don't like it but I'm desperate enough and nothing will matter "soon" anyway after CTB.