So depressed after getting Invisalign today--attachments are obvious?

I am very frustrated and sad right now.  I had braces when I was a teenager and from not wearing a retainer, my lower jaw crowded.  I opted for Invisalign over ClearCorrect as I have heard better things about Invisalign.  The orthodontist I chose did not explain to me that I might need buttons.  I went to pick up my trays today, and I needed 10 buttons, 6 of them on my top teeth.  They are very sharp and big and they look so obvious, even with the tray in.  If I knew this, I would have opted for clear braces or clear correct instead, since both are teacher (and clear correct uses less attachments).  Before I left, I even asked the orthodontist to smooth the attachments down but he said no.  I asked him if I could just remove the attachments on the top with the understanding that I wouldn't get the same results without them (plus, I don't mind the way my top teeth look anyway).  He also said I couldn't do that, but shouldn't I have a say in what goes on my teeth?   So my general question is what should I do?  Also, is there a way I can use a nail file myself to just file down two attachments so they look a little smoother?