Warning, melodramatic rant ahead

Feeling low this evening and kind of angry. I'm just tired of wondering what I need to do differently in order to get pregnant. It sometimes seems like every small decision I make will affect my fertility. Should I start/stop taking this supplement? Should I drink/not drink this cup of coffee? Should I make vacation plans or wait and save the money? Should I try not to get my hopes up or should I think positively? It all seems to end in failure no matter what I do. Move the furniture in the bedroom to be more feng shui compliant (as my mother in law suggested)? Just relax *rolls eyes* and be patient, or make an appoinment with the doctor for tests? Arrrgh!!