Can't close my mouth naturally. Any suggestions?

I used to have a very bad overbite that was corrected through an orthognatic surgery. My teeth are now ok but I can't seal my lips/close my mouth :( I have a long face and I feel the distance between my nose and upper lip is long. I would like to correct this for aesthetic proposes as well. What kind of surgery could I possibly get to fix these issues? Would it be too complicated and expensive? Thank you

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