I have a good amount of sun damage spots on the top of the trunk of my car. I bought the exact color match paint for my car so I could paint it myself temporarily. How do I go about sanding/what exactly do I need to do to spray these spots (the best I can do for right now)

Lightly sand the car, primer is always good, and then spray the color, then clear. Don't try to mask half of the trunk off, paint the WHOLE trunk lid.