You might die from cutting the exterior jugular, but there is also a chance that you'll survive. If you're not sure where to cut, I seriously suggest you reconsider the cutting method, it is quite likely that you will only hurt yourself enough to pass out and survive.
Surviving a fall from 16th floor is also, unfortunately, not impossible, but I would say that is pretty much high enough to be more or less reliable. Pretty scary, I wouldn't do that as well due to the risk of grievous consequences if you do survive, but if you absolutely must chose one of these things, this would be better than neck cutting, way more reliable. If you jump, it's best to try to fall on your head. If you land feet-first, considering the height you will probably die anyway, but that would probably not be instant and will be painful.
If you'd like to talk about why you feel like you absolutely must do it within a week, I'd gladly hear you out and try to look for alternatives with you. Options you name are both pretty harsh, I hate that you have to go like this and wonder if there is any other way. If you don't feel like talking about it, that's okay too.
Besides problems with health i have schizotypal personality disorder which i tried to cure for about 10 years without any success. From the end of 2020 to 2022 i'm jobless, and i only go out when i need food. I don't have any friends, i'm hitting myself, and i have addictions.
All these years I wanted to commit suicide, but I constantly put it off, because I felt sorry for my mother, now she has another concern in the form of a grandson, she is no longer so attached to me. Of course, she still loves me, but I am sure that she will survive my death, especially since she is aware of my problems and knows that I have suicidal thoughts. She will not be left alone, she has an older daughter.
The main reason why I want to die in the coming days is that I live in Russia, and as everyone probably already knows, our stupid fucking government, besides all the criminal things they already did, has announced mobilization. I evaded the draft into the army, and did not come to the military training camp and i don't have any plans to join this criminal war, and for that I face at least 2 years in prison. But from prison they are also sent to war. The problem is not that I am afraid of death in war, but that I do not know when I will be killed (which would make me happy), if I will be killed at all. I'm unlikely to be sent to the front line because of my health, and most likely they won't even give me a weapon (Russia most likely doesn't even have enough to arm professionals), so i have very slim chances to shot myself. I have a phobia, I can't be among people, I'd rather eat shit, but this will not solve my problem, only suicide can solve it.
I have very little time until they come for me, I am also constantly not alone at home, besides me there is also a mother, grandmother, sister and her son. so if I need to cut the neck or veins in the arms / legs, then most likely I will need to leave at night and do it in the forest nearby. If I need to jump, then it will be enough to go up to the 16th floor and jump out of the vestibule window. But as I said, I am afraid of heights since childhood and have no idea how I can force myself.
For the past few months I have been practicing the night-night method, but I gave up, because to feel the blackout with the use of a rope (in my case, a belt from a dressing gown) was only possible with a strong pressure on the trachea. I can easily achieve the sensation of passing out with my fingers (I am very thin, 60 kg at 183 cm), but with the tourniquet, this is almost impossible if there is no pressure on the trachea.
After that, I decided to use SN, but I could not get it in our country.
And now I'm here, without an adequate way to CTB and with limited time.
Please take into account that what I have described is not all the reasons why I have wanted to commit suicide for a long time. it would have taken too long, and English is not my native language, so it was already difficult for me to explain myself.
