As a word of caution: if you think that extinguishing your life in this realm will immediately transport you into the realm from whence you came, you are sorely mistaken. For if the universe is like a tree and our worlds the branches, we know not where you may fall. Teleportation takes a very specific kind of energy that is difficult to harness upon the Earth.
While Death is, in essence, a transportation of energy ... it is cessation. Your energy is absorbed into the world around you. At the very least, without the protection of Asgard, I fear you may forever sunder the body from the innermost essence that makes you who you are. Do not seek Death. Do not tempt the Tesseract. It is folly.