This was back in late middle school. I first attempted via caffeine and over-hydration, and later by sodium-fluoride poisoning by eating two tubes of Crest toothpaste. This was over the span of two days. Terrible methods, I'm aware. I was a desperate 13 year old. My parents didn't care at the time, but they reluctantly took me to my psychiatrist after my school forced them to.
I liked my psychiatrist at the time. I was very naive and friendly back then, although obviously I had some glaring issues. I got there, we sat down, and he asked to talk to me without my dad in the room. He said to me "Hecked, you aren't suicidal. If you were suicidal, you would just do it. You're doing this to get out of school. You know how absurd "over-hydration" is? You weren't likely to die. You were likely to just vomit a lot. So, yeah. Keep trying. You don't want to kill yourself. You want attention. You'll never kill yourself because you don't want to die. Go ahead. Keep trying. Kill yourself. At least you won't be wasting my time. I still get the money every time you do this, but it's getting tiring. So do it."
Wasn't the same since.