Pre-trim your pubic hair. Razors are designed to shave fairly short hair and will quickly clog and become dull if applied to long hair. To trim it, gently pull the hair up, away from the body you and then cut it back with small, sharp scissors, clippers, preferably, some equipped with safety guards. Alternatively, use an electric scissor-action trimmer without rotating heads. Aim for hair that is shorter than 1/4" (0.6 cm).
If you are new to pubic styling, you may want to leave your hair short for a couple of days, as this will allow you to get used to the feeling of being bare down there.
Your nickname is "butterfingers," huh? Then you may want to avoid taking scissors to such a precious area. You're going to need to get super close, so if the idea of a snip snip here and a snip snip there makes you a little nervous, opt for the electric trimmers. With these, the blade can only get so close to your skin.