Help Why am I still here

[No life]

Why in the hell am I still here, when ure in bed or online teaching methods or looking at people who have liked themselves. All I do is cry and I'm so tired of waking up, so many people would have killed themselves but my brain is that tired and stupid I never come up with answers, I ignore life and only feel safe in bed with the curtains closed. There's some good advice on here but what if u can't work out it, seriously guys someone must know how to kill yourself using Carbon monoxide, down to the right bbq, I'm a waste of air!!!!