I believe most people who kill themselves do so because of something external, past or present, that they can't change -- like abuse and it's after-effects (internal, but originating as external)
No. I'm sure this is true for some people, maybe even the majority of people with PTSD who suicide.
People with other diagnoses (depression, bi-polar, others) don't often have an external origination factor.
And people with developmental trauma (possible CPTSD folk) may never have perceived a separation between an external factor and their core beliefs. When abuse is early enough to completely shape your world view - then it doesn't really matter, does it?
People who suicide do so because they cannot see any other way out. Out of the pain, or pressure, or confusion, or symptoms...whatever is trapping them. And the sad thing is, it's most often a breakdown in
perception - there are very few situations where the person is
literally trapped. The feeling that nothing can change and you'll be suffering forever...that's symptoms, not reality. You can have those feelings even if millions of people love your music. Even if you are told over and over again that you are a great talent.
You won't be able to experience inner contentment - or even just inner acceptance - until you build it for yourself. Drugs can help you, therapy can help you, tangible support can help you. But millions of strangers thinking you are wonderful doesn't translate into you believing you are good.
If you do the work and start being able to use those messages as cognitive evidence that you are not worthless - well, then, yes. Positive recognition for your abilities or achievements will help reinforce everything else. But it's got to be there before it can be reinforced.