What is the treatment to normalize the reduced period flow in the last six months?

Hi doctor,

I am 19 years old and a virgin. I have not had a good period flow for the past six months. Six months ago, I got my periods, which lasted only two days. Then for two months, I did not have my period, and three months back, I had my period but no bleeding; only my vaginal discharge was bright red for five days, and it is only seen when I pass urine but is not visible on the sanitary pads. I had my period in the last and second last month, but the flow was minimal. On the first and third days, the discharge was red and thin. I had no bleeding this month, and my discharge was red for three days.

Please tell me what my problem is.

I am too scared to visit any hospital and have a vulval infection. I am guessing it is bacterial vaginosis. My skin becomes delicate, red, and bleeds if I scratch. It also turns white patchy when dry and has a foul smell. I always feel my vulval area is wet or watery.

What happened to me?