This is what you will need. Base coat, top coat, desired color, pure acetone, a small flat brush and a cotton ball.
After applying base coat, start polishing by placing the wand about a centimeter away from your cuticle. This will avoid your cuticles getting smeared with polish.
After you have applied two coats of color. Pour a little bit of pure acetone into the bottle cap of the acetone bottle.
Dip the tip of the brush into the cap to wet the brush. If you picked up too much acetone just dab it on the cotton ball, the cotton ball will absorb all the excess acetone.
Then just clean around your cuticles slowly removing any polish that is close to the cuticle.
If you don't have a steady hand use your pinky to give you leverage. After every nail, dip the brush back in the acetone then wipe it on the cotton ball to remove any polish the bristles have absorbed. After you've cleaned all of them, apply top coat.
Your nails will look like you just got a fresh manicure from a spa.