Welcome to the forum!!!
I would really need to see a profile pic to assess your nose completely. Post one if possible.
You look like you have a skin condition. It might be the photo or the flash, but your skin appears to have excess oil. Please correct me if I am wrong.
I like your lips, as they appear nice and full. I would not recommend any facial filler.
A shorter, layered cut would be more flattering for your face shape. Some highlights around your face would look great too.
As far as cosmetics put some concealer on under your eyes, a cream base on your lids, and keep the focus on your eyes. A bold powdered shadow, eyeliner, eyelash primer, and mascara of course. Put a nice gloss on your lips, and you'll be ready to go!