I'm going to speak my mind about your situation here:
I have seen your posts before, and they always seem like you are on the extreme ends of desperation to end your suffering.. I have tinnitus as well and it is the primary reason (although not the sole reason) I will be sealing my own fate with in the next few weeks or months..
I know you are old and tinnitus is constantly distracting you from being able to focus on things very well, and your frantic posts make me question whether you have enough mental fortitude left to do some research on here of the various different methods there are to help end your suffering..
Tinnitus is the worst thing that has happened in my life, and so I can imagine what you might be going through, and I want to help you so that you are not suffering any longer..
I admit that it takes a bit of research to figure out all of the available methods and how to properly execute them, but I'm worried that you might not be able to muster the patience or focus needed to thoroughly research the different methods.. And I'm not sure how computer-savvy you are at your age either..
One of my favorite methods is the hydrogen sulfide method (also known as h2s), because you only need to get 2 different ingredients from some stores and mix them together and you're done (in both senses)..
But there are other methods you could do research on as well, like the grilling method (I think it is called CO), the N method, the NS method, the F method, et cetera..
However, if worse comes to worse, and the severity of your tinnitus won't let you do proper research or allow you much patience, I suppose you could do the jumping method.. Starving your self probably won't work because your body will force enough survival instinct on you that you will end up eating and drinking, and it would be a painful way to go any way even if you could suppress survival instinct..
Jumping is scary as heck, but it is a method that is easy to prepare.. All you need is to find a place that is sufficiently high, and be able to suppress your survival instinct long enough to take a leap.. Again, make sure you don't choose a place that isn't very high; You don't want to risk still being alive afterwards, because the consequences of that might leave you in a state much worse than you are currently.. You don't want to have tinnitus AND be left crippled in a wheelchair for the rest of your life, unable to end your pain..
You can search around on google maps for a jumping place if you can't think of any good places in your area already.. And even if you have to drive quite a distance to find a good place, it'll be some thing you'll only need to do once..
I hope that you can soon manage to find release from your endless torture that you are experiencing.. You have lived long enough to deserve freedom from your pain.. You deserve peace, happiness, and tranquillity..
Love and light