Put yourself on a schedule -- so make it easy by doing it in pieces -- 2 blocks a day - or so many minutes and finish that block and call it a day.
There seems to be a thing about quilting some tops -- have seen it discussed here off and on. Sometimes its best to let the top "age" a bit while you figure out how to quilt it properly. And then, to take that in segments too, so it doesn't become tedious. (Try not to do this with dinner --it doesn't work so well with food!)
This is a wonderful top and will make an outstanding quilt. So don't let it get to you, but you get to it!