Help needed

Jade
I'm going on month 8 with no success at all. I use opk's, preseed, tilting pelvis up using a pillow after BD, BD every other day and everyday for 3 days when I get my peak, take prenatals....
I need some suggestions on what I can try that's worked for someone! The last 2 months have been the hardest when AF drops in. Before I know it I'll be to a year and I'll be that much closer to my mid to late 30s. 
Suggestions and tips are greatly appreciated. Thank you in advance. 😊