I'll just be real here and cut to the chase, even if it will sound mean.
This won't work.
If you want to recruit actual useful people, and have any hope in finishing any project, you need to show progress. You need to have some working demo to show that your idea works. It can be done with fully placeholder models/textures/whatever, but you need a playable thing to show.
When you have that as a baseline, try to recruit, and you'll likely attract useful people.
I would say it's ridiculous you didn't even write any kind of description or said anything whatsoever about your idea, but in fact it wouldn't matter too much. Even if you have the best idea, ideas don't manifest themselves, you need the skills to realize them.
So after that - learn how to use Unity, read tutorials, research, and start making whatever it is you want to make.
You can make everything as specific as possible, take the shortest paths, and do whatever you can to make the demo come to life faster - you can always improve later on when you know you have some prospect for a team.
Just get something playable.
Either way, good luck.