I'm also at a difficult point right now. My skimmer pump broke, and my phosphate and nitrate are too high like yours has been. I was mildly considering going back to freshwater. I'm so close to making my tank really work, though, and I'm stubborn. I also love what's left of my reef. I won't give up either. I read an earlier post you made and realized I haven't been changing my filter socks nearly often enough either.
Thankfully my fiancee has agreed to help me with the water changes, so I'll be able to step up the amount and frequency, as well. Truly, it can be very difficult at times...but I've been rather inspired by you and I believe I can eventually get it right.