Feel so Defeated

Saw my OB today hoping I was going to be put in Metformin (high insulin levels) but had a progesterone test done last cycle and it came back low. Now I have to go and have a biopsy done on cd24 again before he treats me! I get it don’t want to start one med if I’m going to need another but come on It’s been 17 freaking months that we have been trying and I just feel so beside myself and want to just give up.! Between the doctors visits and the stress/let down every month when my freaking period shows up and I did everything right that cycle I’m just about done! I needed to vent somewhere I’m not telling family so I literally have no one to talk to about it without someone saying something like “oh just give it time” or “ stop trying and it will come” I get it I really do but those things hurt too!