I feel like a failure as a woman :(

So I'm TTC my first baby, and it's been 3 months with no results. I've been going off of my Glow and Kindara ovulation predictions and so far it hasn't worked. I have tried to check my cervix like most other women have done and had successful pregnancies... And I honestly can't tell. I can't tell differences in my CM or if it's high or low... I've read so many articles on how to check and I'm hopeless. Maybe this is why I haven't conceived yet.