I really think the doctor was right when the doc asked u to just relax..guessing you are experiencing major stress that contributes to the infection
but its normal for females not to realize they are heavily stressed ~!

got infected twice (heavy growth infection) due to stress and it did stop once you actually accept and not to feel bothered so much. Of course I know the agony of having to bear with it..it doesnt have to do with your hygiene all the time and it stressed you out unknowingly.

plain yogurt works for me, clotrimazole too..continue what you are practising and please stop thinking about it in order for you to be okay ! I wish you well dear