help irritated & red bumps down there after shaving 🐱!

what do yall do shave , wax or others? i’m 16 years old i’m really hairy . like when i say hairy i grow thick black pubic hairs all over my body it’s so hard to keep up with sometimes tbh bc it grows back FAST . i have hair EVERYWHERE. and i tried nair bc a friend recommended it for me and it did not work at all for me. then i just sticked with shaving even tho i didn’t want to bc of how bad my bumps get down there and i shave with a regular shaver bc i know my mom wouldn’t buy me a bikini shaver haha but any advice to avoid bumps & irritation ??