Should I give these people these notes?

No, don't give them the notes. Sometimes these things are better to write down just for your own sake. Now ball them up and throw them away. Just the action of cutting this Sam guy out will speak all the words you just wrote. As for Joseph, maybe he'll come around on his own or maybe he won't. If your intention is to not ask him out then why bother. If he doesn't feel the same way then you just made things awkward between you both. If it's meant to be it will happen but it may months or years from now. Your still young and have plenty of time to go fishing.