Late - no need to edit; there's nothing wrong with your post!
I think we're bound to feel frustrated with how 'easy' this could have been had we met lovely men to be doing this with, especially when you're at a point in the process where its not obvious what to do next.
You're definitely not allowed to feel despondent yet though
In the grand scheme of things you're fairly early on in the process really.
I've had 4 IUIs. I actually got BFPs on all four of them but lost attempt 1 and attempt 3 within a couple of days of getting the BFP, so these were chemical pregnancies. Attempt 2 was the BFP that progressed to 11 weeks before the MMC was discovered. The chemical pregnancies were annoying but gave me faith in the clinic, the process and that I was getting the timing right. Because of this I would have continued to IUI No. 5 if No. 4 hadn't worked.
There are other ladies on this thread much better placed to help you weigh up IVF vs. IUI.
I think in your position, if I could afford it, I would probably try an IVF next but I know it would be a difficult decision because of committing to all the hormone treatments.
You have had a hycosy, haven't you?