TTC Frustration

Hello... I know I'm not the only one that gets frustrated/sad/ mad when aunt flow comes after the TWW. But I am really getting discourage (I know it has taken some women way longer than it has for me so I'm not trying to be a crybaby) but come on we wait 2 damn weeks from our period to "hopefully conceive" during our fertile window then wait another 2 weeks to see if AF comes it's just waiting and waiting and I'm getting discouraged! Usually when AF comes I'm upset and think ok I'm done trying now! But a week or so passes and my fertile window comes up again and I'm thinking okay I will try again... I have had one successful pregnancy 2 1/2 years ago I'm thankful for. It seemed to take awhile with her but this is 3 times longer! I had gotten my mirena out the end of March have used OPKS, tracking my cycle, used preceed lube during my fertile window... and nothing. I'm getting so discouraged especially when I see people not even try and get PREGOO LIKE BAM ugh wondering if I should just give up...