Nihilism helped me recognize the simple fact that we made all our ideas up. Not without a purpose, we use them as tools for survival, but we aren't even obligated to survive because of anything objective. We do what we want, and most of us want to live and be happy. If you want to die, you will probably negatively impact those who care about you and might not repay all the labor that society put into raising you.

However, a person doesn't objectively need to live for others, only for themselves. We might force someone to live for the sake of contributing labor society, but if we don't help them achieve happiness, we're basically enslaving them to misery that they never wanted or asked for.

Almost all people can be brought out of a suicidal mental state with modern methods, but they need resources to improve. In a system that doesn't even guarantee people the basic resources to survive, I see most incidents of someone taking their own life as a societal failure. We let them down, just like we let down people that die from poverty. Mental healthcare, like all healthcare, should be available to everyone.