1. Would you still go through with it if you could bring 1 person back to live?
Yes, I would. Also, I wouldn't wish to bring someone back into this world to suffer.
2. Would you still go through with it if you knew that three people you knew (no specification on who exactly) would kill themselves right after you, leaving their loved ones behind?
Yes, because it's their choice and it's not my place to decide what they do with their lives (free will and freedom of choice).
3. Would you still go through with it if you suddenly became rich?
Yes, but I may enjoy life first and see if there is something to hold on to, however, at the end, it's still likely (realistically) that I will CTB.
4. If you're physically sick rn, would you still go through with it if your physical illness suddenly dissapeared?
Hard to say, because I'm not physically sick rn. However, if I had a physical illness and it was cured, then it would depend on quality of life from then on out.
5. Would you still go through with it if you could choose exactly what your appearance looks like?
Yes, because there are more than just appearance and looks that determine whether quality of life is great or poor.
6. Would you still go through with it if you could make 1 wish, being able to wish for literally anything and if so, what would be your wish?
Yes, since there are many more factors that would cause life to suck and not worth living.
7. Would you still go through with it if you could do the last 10 years all over again with all the knowledge you have now?
Yes, it is inevitable because due to Murphy's law and changing one variable from the past will change many outcomes today (some for the worse and some for the better)
8. Would you still go through with it if you knew for 1000% sure there would be absolutely NOTHING after dying? No Hell, Heaven, an afterlife, reincanation, etc. etc.
Yes, of course.
9. Would you still go through with it if that meant your entire existence would go away? All the memories, everything. "If you kill yourself, no one will attend your funeral because nobody was aware of your existence, as that will be washed out from everyone's head the minute you die." - What would you say?
Yes, and I would say that I am no longer suffering in a cruel, unjust world, eternal peace at last.
10. Is there anything or anyone at all who could you change your decision?
No, there isn't. The best anyone or anything can do is to push the bus further down the road, but as all humans, mortality (sickness, illness, and other ails in life - whether at the individual or societal level) will catch up.