Hey since all of the Christians who lurk here are so keen on living in an eternal safe space with your Jewish god then I think I can come up with a way to speed up the process.
You just need
1 x Priest ready to forgive your sins (don't even ask what his payment plan is)
1 x Booth rigged with Hypoxia chamber for a painless death
Right and as you're dieing from the lack of oxygen you just need to remember to ask the priest to absolve you of your sin of killing yourself.
There you are in Heaven, saved you the trouble of living in this temporary life.