It’s hard to get a person who’s in a dark place to see or want anything positive out of life. Because in that state it’s all they know and happiness feels like something that doesn’t truly exist nor is it something that they even want. I’ve been there, dealt with suicidal depression that lasted a few years. Every day I wanted to off myself. But somehow slowly I got out of that place. I can’t really explain how but you just have to want to find things that make you feel good. Try to focus on that. “You get what you focus on”. Macrodosing shrooms also helped tremendously to crawl out of that hole but ultimately it came down to wanting to just choose to be happy, and choosing to want to be happy. Figure out what feels good and chase those things. People who live a life that feels good/is fun and enjoyable for them want to keep living but those who are miserable understandably see no meaning and want it to end. I guess it’s about shifting your perspective. Get away from people or bad media that’s contributing to your negative mental state and fulfill your life with people and things that feel good.