What am I doing wrong?

I have been taking my prenatals, I use the ovulation predictor and I also have tried eating healthier and everything. I just don't know what I'm doing wrong......every month it just get hard for me becuase I try not to get my hopes up every time it's close to the date I'm supposed to get my period and I feel confident that it will be the month but then I end up with the heartache. 😔💔

I tell myself to just give it a rest for a month but I end up wanting to try again......