Hey TS, i've done plastic surgery before. I'm not against it or encouraging you doing it, but it's really depend on your determination & how comfortable you feeling with your own skin. I did double eyelids surgery 2 years ago, I didn't regret it at all!!!
My eyes are very feng 鳳眼 with thin upper lids, friends around me said that my eyes are very unique & after I put on double eyelid stickers, another complete different look is formed. I like seeing myself in double eyelids more but putting on stickers are really troublesome especially I did it on daily basis. Hence I decided to go for stitches method. Not the traditional incision method (開刀). The healing process was real fast & I save so much times on putting on stickers & make up.

My colleague just went to TW 2 weeks ago, she did the nose filler stuff. It's not a surgery, just injecting the 微晶瓷, and shape the size or the look you want. However this is not permanent, have to do it every half year or 1-2 years depending how soon your body dissolves it. But it's totally revisable & so much cheaper compare to implant something into nose.
Again, I would like to stress that if you're very comfortable in your original look & your appearance, just skip the plastic surgery. But if doing it makes you feel much more confident or happier with the better appearance, why not?