Wow, this is one crazy topic.
I just want to say that if you do decide to suicide, you will never be this you again. Anyone you loved and cared about, you will never know them in this way again. Any qualities that you like about your life will be vanished. Any knowledge that you have acquired while here, will be washed away and your time spent on learning would have been in vain. If you had the wherewithal to be born here, then you have the wherewithal to live through it. By committing suicide you are showing your weakness and admitting defeat to the problems of your life. You don't even know what will happen if you die. If you think that you just don't exist anymore, then is it worth it to suicide and not exist for an eternity just because a few Earthly things got you mad? If there is reincarnation, who's to say that you will be in any better situation when you come again?