If it's good tape, 15 minutes sounds about right. If it's a re-wrap with existing tape (like you unwrapped part-way to move a shifter), or inflexible, non-stretchy tape, it takes me longer.

For me, the hardest part is wrapping around the shifter on the left side. I'm right handed, so I have an easier time in general with the right side.

Give it a shot....it might not be perfect, but you really can't break anything