Razor Bumps !🙄🤧

so i only shave when i have competitions for either cheer or gymnastics and so far i've had 5 this summer . because i grow alot of hair down there , we first started using Nair , which is a cream that removes the hair but it irritated my skin so we stopped using it . my mother and i talked about it & she allowed to shave my vagina when i have that certain activity . but all of a sudden , little bumps had appeared & i didn't know what to do ; i only shave downward so i wasn't sure if i was doing it wrong or not . i'm 14 years old & it looks pretty bad but i scar very easy . i never picked at them or anything . they just appear then disappear in a littybitty round like scar . i'm sorry for the picture i just didn't know how else to explain it . my question is , does anyone know anyway to remove the razorbumps or have a recommendation to have them go away ? Is there another way i should remove the hair ? if so ; how should i ?