Not the best place to ask but still

How do you stop the thought of wanting to die?
I think I joke and think about my own death so much; and it just feels like I've lived enough
Sure, I still wanna do some things, but idk
I wake up and think about dying, sometimes I joke about how if I don't do this one thing, I'm gonna kms
It's not like an urge, but more of a constant thought
Even I'm tired of thinking that, so, how do I stop my dumbass fucking brain from having that thought