You have some time… use it to get some experience with shorter trips and put together your gear/kit… it’s a BIG undertaking. Also… do some trips with companion candidates to see about compatibility… it’s not a small thing to get along with others on a long hike…
Great advice. Get some experience with varied trips of different lengths. You might even find that your priorities evolve. Perhaps you will discover that through hiking is not the be-all and end-all of backpacking, or you might find that you prefer to develop your own skills so that you aren’t dependent on someone to guide you.
And please be mindful of your safety, this approach seems very risky. I’d much rather find hiking partners through personal contacts or maybe a club, than by searching blindly on the internet.