I just want something that is easy to use. I don't know anything about nitrogen or regulators and the thought of being faced with the complications of it stresses me out. I have no idea how to connect a regulator to a tank or how to use the regulator. This is frustrating to me because this is how I want to die and if I can't figure it out I'll be forced to use a gun. And we all know I could potentially survive a gunshot wound to the head and then I'd be worse off than I am now. So I HAVE to learn how to use a regulator. I feel pretty stupid, even though I have a college degree in mathematics. This is from a decade of not using my brain. Thanks, depression.