Burning in my vagina when I pee! help!

I have had some itching in my vagina every now and then the latest two weeks or so and now I've felt a burning down there when I've peed. I logged this on eve and it said it could be a vaginal infection or STI. I'm afraid do tell my parents since I don't have the greatest relationship with them. Though, I've always had such burning in my vagina but it has never burnt when I have peed. I also shave my pussy, so i feel like it could be that I'm not washing my vagina as often as I should. In any case, is there anything I could do by myself to treat this?