(thanks Dubito for tagging me)
Im really sorry to hear about your situation, and i hope for you to get in a better situation soon for your own sake since this seems to be eating you from inside. You deserve better life position, but, for your well being i advice against it.
My own attempt was something of 10~ stories, but where you live and how your buildings are build 10~ stories might be taller or shorter compared to other places, anyways, since you want to use the balcony method, if the said suposedly hotel was surrounded by lets say, trees or anything that can slow your fall that can lower the chance of succeding.
But if you ever find yourself in this position where youre preparing to jump, if you were in the state of panic you wouldve probably backed off from the spot and wouldnt try again. I personally wasnt panicking but i was sitting there for a long while because preparing to jump is harder then you mightve think, because your SI is still trying to stop you no matter how calm you might feel.
And yes youll lose consciousness the moment you hit the ground, 10~ stories height and above is guaranteed for that but some people lose consciousness from even very small heights (falling from the ledder for example). How long youll actually be unconscious for is unclear, i lost my own consciousness but it could have been seconds, minutes, or maybe even 30 minutes before i woke up.
How to make your attempt more likely succeed depends on: where you jump, how you jump, where you land, the height, the speed, and how quickly youre found and brought to ER (you are not leaving the hospital without any long term damage unharmed thats for sure)
Why i say against for others and you to not go along with this method is... its just not worth it. Like many other methods unfortunerly.
But i hope your life condition and the situation youre in improve before you choose a method you might regret later. Take care and be well