Loosing all hope 😞 13 dpo bfn

I feel so broken down and tired mentally 😔 I have been trying to conceive since I was 18 I am now 24 years old.. same partner been trying for 6+ years now.. went to the fertility doctor earlier this year and got put on femara welp 4 cycles later still no bfp.. I don’t know why this has to happen to me 😔 my biggest fear ever since I was an early teen was never being able to have kids I would watch movies and hear people saying they couldn’t have kids and I would pray I got the luxury of carrying the love of my life’s child well what are the odds here I am 6 years of trying and no baby starting to feel like my biggest fear is coming true 😞