Ttc is a pain n heart breaking

No rainbow baby yet. I feel like giving up but I may try one more time before giving up. Af showed her ugly face today 😏😭 so now I get to find opks again. I'm thinking about spending a little extra this time though. Which opks do you guys recommend? I have used iproven a couple times n I like that one. I've seen alot for premom n pregmate. Also I'm thinking about getting a bluetooth bbt thermometer and I've only seen them for femometer and premom. I use premom which is how I found out I have a luteal phase defect (which didn't happen this time yay). I'm taking vitex which I believed helped with that defect a little cause my temps stayed high. I will get pregnant next cycle I'm a bit determined but I'm also wanting to give up cause its heart breaking everytime I get a bfn. Any advice would be great thank you ladies 😊