I hate suicide prevention. It generally works, and I haven't thought of suicide; I have had death related thoughts. It is normal to experience some parts of your life as "who would be there". I hate actual suicide prevention, because of the chain of questions before you can give meaningful advise.
Example response to a 15 year old. Yes the thought of would .... Be at your funeral is normal. Try this or that help cope with the extra hormones and this normal thought. Add humor about old people with the same thought
Too many questions