Help please

Ashley

So in may, its been 4 years that weve been trying with no luck. I had a miscarriage in August of last year at 5 weeks. Is there any advice to help me? Im taking prenatals, fish oil, and doing different positions. Doing stuff normally 2 to 3 times during my fertile window and on my ovulation day. Yes im tracking all of that. What else could/should i be doing?