I’m having no luck 😭💔

I’ve often thought to myself maybe I’m doing something wrong?! ALOT of women that post here are doing ovulation kits, prenatal vitamins, and they take every thing, I mean everything. My average cycle is 30 days, some months I go 38, my cycle days on average are 7, some months I go less. I have sex during my ovulation days but I don’t hit every day. It’s usually two days then break or every other day. I’m starting to feel a little hopeless. I want a baby of my own so badly. I believe the power of prayer. I also believe in learning. So any prayers or advice would be extremely helpful.