All scientific evidence currently most strongly supports the notion that when you die your ability to perceive and think cease to be, causing 'you' to enter a state most similar to extremely deep sleep, although even more so. There is no scientific evidence for an eternal soul, and all religions promising eternal life after death have been thoroughly debunked and believing in any of them is essentially the same as believing in arbitrary bullshit. One of the leading theories of the end fate of our universe is that it will enter into a state of heat death, in which change ceases to be. This means that our universe is likely not cyclic, and there will not be a new singularity formed or a new expansion, and therefor there is no chance that you will reemerge from the singularity again after you die. The probability that a neural network making up your consciousness will be recreated in the remainder of time up until heat death is likely to be infinitesimally low. Pretty much your only hope for life after death is a multiverse with eternal inflation. However, in many multiverse models it is predicted that there is already at least one other life form equal to you somewhere in reality, and considering the fact that your ability to perceive doesn't seem to stretch to this clone it seems likely that after you die here you will not suddenly be able to see through the eyes of your counterpart in the multiverse. Also, the multiverse is not even proven and it probably never will be, and many physicists see the notion of a multiverse as being more religious than scientific. Near death experiences are not the same thing as death experiences. If you want to experience a near death experience I suggest that you snort approximately 250 miligrams of ketamine, which will also probably have the added benefit of giving you temporary relief from depression lasting for some weeks, as you are probably actually depressed if you are contemplating suicide, even if you claim otherwise. Other than that I would lay off of the psychedelics for a while because you don't want to get so far out there that you kill yourself trying to have a spiritual experience. Failing that you may want to consider joining a cult, your beliefs seem to map with heavens gate pretty well, unfortunately for you they already blasted off into heaven on a spaceship hidden by a comet.