I'm a nurse so I know how to set up for an IV catheter. Midazolam is supposed to be injected slowly but what's the worst that could happen if I just push it all at once? I die??

I changed my plan to push Midazolam while having several plastic bags wrapped around my head. 60 mg of Midazolam is A LOT and should keep me unconscious long enough to peacefully die from lack of oxygen, or..?
That's good, so you know the technical stuff and how M works and you know the LD50 of M etc etc.
TBH I am not sure what can happen when you push too fast. I just know from looking into other methods (Nembutal as example) that it can't be self-administered in sufficient amounts before you pass out. The PPeH describes and shows a few solutions some people have come up with (like a spring loaded device to continue administering N while the person is already unconscious).
Maybe that's d/t dilution and simply volume that would have to be administered. Maybe Midazolam comes in higher concentration and needs less volume to lead to death?
Only you can decide if it's worth trying.
Dying would probably not be the worst case scenario here, but being found, rescued, then found out where you got the drugs from, losing your license, losing your job, etc etc etc.
So, read up a bit about other people here. You may find some experience reports from people who have used Midazolam. Plastic bag around head can help, yes, but you need to be extremely sedated in order to not unconsciously trying to claw that bag off your face.
Please don't take my questions or suggestions as criticism.
I simply don't want you to be worse off than before.