Why is it so hard !!!!

Me and my boyfriend have. Been trying for 5 years and havent gotten our BFP yet.. it's starting to become so tiring and frustrating...... I end up finding out that I have PCOS through my OBGYN and she says since it's been so long there's nothing else that she can do in my only options is to do fertility treatments but can't do that when you don't have the money to so it's basically like making feel like it's just saying well you'll never have a baby then......please help!!!....Any advice?