AF arrives again...

Starting to lose all faith in TTC... It's seems that every month when AF comes it just puts me in this horrible state of mind. Everywhere I look, everything I do (social media, go to the grocery, out to dinner), there's always someone pregnant, everyone with babies, baby aisles... It's just every where & I feel like the best are the ones who can't conceive. Need some encouragement, ideas on how to cheer up & gain faith.. :(