On another somber note, even if we could transcribe our consciousness to machines, achieve singularity, etc -- all we do is delay it by another number. The sun is going to burn out, explode an expand, and eventually stars in general will run out of fuel. Is only hope is to change your conscious understanding of life and existence to accept non existence?
10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 > 80
That said, it does seem even if we gain a mind-boggling level of energy manipulation, 10^20..10^40 years is a rough expectation for regular matter, as we know it, to continue to exist.
Absolutely, I can't think of anything worse than living forever. Enjoy this brief period of time you have being alive, and accept that it is finite. The only thing you need to worry about with death is that it doesn't come too early, and to try and avoid it being in absolute agony (if you can).