Recurrent yeast

I am so frustrated with my vajayjay😭 recurrent and stubborn yeast infections are driving me insane. I didn’t have this problem until I got pregnant December 2017. I know yeast infections are common for pregnant women, I got one at the end of February, beginning of March in 2018. I never treated it, in hopes it would go away. Fast forward to April, I had to have a D&E due to no fetal heartbeat detected 😞. The yeast symptoms weren’t as harsh after that so I just drunk kefir in hopes it would go away. Well it didn’t so I went to the doctor, was prescribed two diflucan pills which helped temporarily. I’ve taken diflucan multiple times since then, but here it is, 2019 and yeast is still driving me crazy. It’s ruined my sex life. Monistat 7 didn’t help either. Has anyone experienced this and have any advice tips? Even if you haven’t experienced this, any suggestions on what could finally solve this yeast problem?