You should choose the right people to work with and it won’t be hard to find out anyway. You would just have to find out who works the hardest among the people around you. When that is done, you can make a careful selection and you don’t even have to give yourself a time limit for that. You should not be looking forward to wasting any time with the people you chose. You can’t blame yourself anymore since you were the one who chose them and you must live with that.
It is possible to have a long friendship with all the people you know so you can make a good decision on who you will share the document with. You can take your time as there is no deadline for that. After all, it is quality over quantity which means you are better off with a few intelligent people instead of sharing the site with a lot of people who don’t really know what they are doing. It will be too late when you learn the lesson the hard way.