Feeling down

I am feeling depressed today. I was so naive about getting pregnant. So many friends had accidents in hs my mom has three kids no problem my sister has three one after the other. I started prenatals in may and started trying in august and nothing. And please don't comment and say it takes time I know this. But I have tracked ovulation the entire time and have done so much research. Now I feel dumb I thought I'd be pregnant by now I thought it would take two months. I had preconception appointments and everything. Ugh I'm just ranting but I feel worthless and down today. I have been successful my entire life this is hard