Yes, not super young like 3, (though I don't have any memories from then), but from abt 8 or so. I kept praying to god (I was a Christian then) to take my life. At the time though, it was because I thought I was - still think I am - a mistake and a burden. Thought I didn't DESERVE to live. There was an innate incongruity with the world that only seemed to exacerbate with age.
Now I still wanna ctb, but it's mostly due to anxiety and just me purely not wanting to exist. I still think I don't deserve to live, but it's more like I feel I've done nothing to warrant the daily torment I go through.