Just some advice from a long time shaver.I always use a new blade no mater what!!Never shave when you first get up in the morning,Try to shave in the direction that the hair grows and be sure to keep the skin taunt.I stsrted shaving in the shower,useing regular soap,I now can shave any time during the day and sometimes I shave dry.
When I first started shaving I always applyed baby oil after shaving.
Try not to keep going over tha same spot ove and over.
Once you become used to being shaved there it will all go away.
It shouldn't take long to ket the hang of it and once you do it will all be well worth it.

Some people say that if you keep shaving on a regular basis it will toughen your skin so that you will no longer have a rash, just as the skin on your face got used to being shaved. That didn't work for me, but you should definately try it. Back in the days when I had hair I'd shave once a week. That kept the rash to a minimum.

If you like being hairless, consider a permanent solution such as laser hair removal. I had all my pubic hair permanently removed about ten years ago and it's great to be hairless.