Trying for 18 months no positive tests

I’m struggling I know it takes years sometimes…

But is it really worth tracking ovulation I roughly know when my time is and have tried at the time I find this all to stressful … I’d rather let nature take its course which I have and nothings happened I’m to the point I’m almost giving up now …. I don’t know how people stay strong when ttc it’s such a hard and lonely journey💔😔