I feel like no matter what happens I'll always be suicidal and I'll regret not doing it when I was younger just like I regret not doing it in 2019. I could give life a chance but I wouldn't expect any change. Maybe I should try to expect change instead of having this negative attitude even if its probably the truth. CTB feels like the best option for me. If I didn't exist I would not worry anymore, I would not despair.
Of course, we all agree that non-existence is the best possible state for a human being, but in my humble opinion, if you still enjoy some things in life or live a good quality of life, In this case, you can continue living until something happens that forces you to ctb(the last straw).
I know the chronic suicidality is bitch. If you really think that there is no other solution and that what you want is CTB, then I advise you to take benzos or a sedative that numbs your thinking and your ability to make decisions when you do it, maybe partner will be nice.