alcohol and coffee after ovulation

Naomi
TTC and so have been trying to cut down on wine and strong coffee knowing this isn't good for baby. But having been ttc for 6 months feels like maybe making uneccasary sacrifices at this point?! I go through this constant cycle of when AF starts feeling fine to have a glass of wine and coffee, to the opk, then cut it all out JUST IN CASE..feel guilty for drinking even a drop of alcohol,  then BFN and AF returns and then the wine and coffee comes back out. Should I just not worry about any of this till I actually have a BFP? Anyone else feeling the frustrations of cycles and deprivations!