1. Your nasal bridge is straight and the size is appropriate for your face; Men can hardly have a nose that's too big, unless it has a giant hump or if the guy has a long face. You have neither so don't touch that nose.
2. It's pretty clear from your profile pics that you have a well-developed chin and jaw angles and that there's balance in your face.
Overall, I'd say you're somewhere between average and attractive.
However, I hate your haircut and think it's detracting from your attractiveness: it's the kind that's trying to disguise the receding hairline that all healthy men get. Essentially, it's making your face more round which men don't want. The haircut you have now is only for kids. Get something shorter and squarer with no forehead and hairline-hiding "tricks".
But whatever you chose to do, I can't really see what jaw surgery would do for you and honestly think you've developed a habit of worrying about these things and now you're stuck in those thoughts.