My anus itching and my pubic hair also my inside vagina too...when l go to pee is burning and painful my abdorminal is painful is that any std help?

Infection. This sounds like 2 separate issues: vaginitis and a urinary tract infection. Cannot be diagnosed online. Make an appointment with a GYN for definitive diagnosis, evaluation and treatment.
Burning. itching and burning can be from a yeast infection or from an STD. Please consult a doctor and also get tested.