In the face of the woe that has befallen your life any words I have to say seem hollow. The only point I can identify with is financial hardship as I have been bankrupt and lost everything many years ago. At the time it seemed like there was no point to anything, with failure at every turn, but that is depression and it is an ugly beast not easily sated.

Graduating top of your class in accounting is no small feat. You should be proud to have done that and not be considering throwing that effort away via suicide. Suicide is a wholly selfish act and no words by me will change your mind, that is on you. The fact you write about it gives me hope that you are looking for alternatives... keep looking! As any life, shit or otherwise, even one struck by the horror yours has been, is an amazing gift so don't throw it away! Don't make another stupid decision as you sound like you are smarter than that.