Decided to stop ttc

I am fed up of ttc. 6 months and no luck. I feel my efforts goes in the bin every month my period comes. Me and my hubby are 28. We have a 2 year old son. I got pregnant easily before after 3 months ttc. I tried everything and i feel ive wasted lots of money over nothing. I used ovulation kits, pre seed, agnus cactus. Looks like im jinxed. All my friends are pregnant and have two kids. I feel left out and misrable knowing i cant give my son a little sibling to play with. I am the only child and hated it this is why not being able to get pregnant again is breaking my heart. I decided to stop ttc and not to expect good news. I done and tired with all this and im going to delete all these baby apps too.