How do you find the strength to keep going?

I'm not sure that I can keep going with this journey. I want a child so badly but I'm not sure it will ever happen. I have endometriosis and pcos. We have been trying almost 2 years. This was my the 5th round of clomid. I ovulated the first 2 and not the 3rd or 4th. I went for day 21 blood work today. I went to the dr on cd17 with severe pain. The did a variety of tests and my right ovary was roughly 10cm and there was 4 follicles a 19,20,22,25 mm. There was one in my left ovary. They did some blood work at cd 17 and it didn't confirm ovulation. I'm not sure how I can have ohss and possibly not ovulate. I am so fearful that it comes back badly. I am in so much pain and already feeling like af is going to show up and it's so early. How do you find the strength to keep going on? I feel like I am constantly crying bc I see everyone else having children that they weren't even trying to have.