Hello there, NICs and Scratches (especially one that you could feel) will need touch up paint, you're not going to be able to remove them but "hiding them from the untrained eyes" should be possible with the proper tools.
Here's what I would do to your car.
1) Dawn wash the car...
2) Check for Contamination, Claybar the whole car..
3) Quick Detail the whole car or give it a quick wash.
4) Use
Meguiar's Step 1
5) Quick Detail the car, and check for Contamination, Repeat Step 2 if needed.
6) Use 3M Swirl Mark Remover in areas where it's needed (Hood and Trunk) or the whole car
6) Use either Mothers Pure Carnuba Wax or
Meguiar's Step 3 Carnuba Wax.
All of the steps above will be under shade, out of direct Sunlight. I'll work on a small area at a time. Applying the Solution with the pad, rubbing it in till dry or per instruction on the bottle and buffing out residue with the Microfiber or Terry towel that I have.
When removing swirls I will put a moderate amount of Polish on the pad, and then rub it on the surface using firm pressure (not too much that I put a dent on the hood) and back and forth motion till the polish is dry. Buffing off Residues with MF Towels
When using Wax I will use as lil as possible, apply it on the surface evenly give it an hour or 2 to cure depending on the temperature or humidity and then buff it off using a MF Towel..
Not sure if you could layer the Wax that you have, if you can then then I suggest doing it. But I'll wait 24 hours between each layers, and using Quick Detailer in between.
Good luck and don't forget to take pictures when you're done.