I have seen people here talk about their experiences on being suspected of stealing, as someone on the other side of this whole thing I have to say: once your money is gone, it's gone. When the teacher told us students to leave our bags in the hallway and my money "disappeared" when I came back, they didn't even bother searching for it (although I told them I knew the girl who always picked on me did it). So just accept you were dumb for trusting other people and never do that again.