Low libido

Guys I need some help. I've been ttc for awhile now and I've been hearing " just stop trying and it will happen" I've seen it work for some women but I can't do that because if it was up to me I would get pregnant by just sitting there, idk why I'm only 19. Don't give hate but my sex drive was was insane when I was 12-13 I couldn't get enough but now it's just boring and most of the time I can't get off unless I'm masturbating, I only orgasm through clitoral stimulation and I used to be able to orgasm vaginally. Does anyone have any advice on how to get my libido on track?