Do you have a reproductive endocrinologist? If you don't, I would suggest seeing one before you give up. Good luck, I know how you feel.
I feel your pain I have been ttc for 4yrs with no luck at one point I convinced myself I didn't ever want a kid just because how much it hurt to want one so bad but then I remembered that god said as and you shall receive speak it into existence and that seems so hard when month after month day after day minute after minute your on your knees oraying for something that woman are born to create but just keep your faith he answered prayers in his own time but always on time. Much baby dust to you.
the average is 3 rounds for the clomid but for me this time it was 4 rounds. The best thing is to keep positive and keep trying. it will happen when you least expect it to.