I'm afraid I'm going to get an infection in my pubic hair follicles! Please Help!?

Please don't make fun of me, I'm a boy, I'm 15, I have hair all around the you know what area, today anyway, (you can make fun of me all you like because I deserve it but please don't ask me why) I shaved all the hair on my perinneal Raphe and nd shaved a small area on the actual pubic triangle area, I stopped halfway though because I was afraid tomorrow that I'm going to get an infection in my hair follicles down there which will be really itchy, and I don't want my parents to know about this or I'll die of embarrasment!, I used a Bic face shaving razor aswell, I feel like such an idiot, I shaved my pubes once before but at that stage I only had hair on my pubic triangle area and I luckily didn't get any infection afterwards, but this time I got 2 or 3 small little cuts, I didn't even notice them until I saw blood but I'm still kinda worried and I'm remember my sister got folliculitis after shaving her legs with a dirty razor, but the one I used was brand new, I also dry shaved. So sorry for such the long question but will I get an infection?, and how long will it take it all to grow back?, I vow never to do it again.