If you like podcasts, I would suggest listening Frank Delaney's Re-Joyce [0], where he goes through Ulysses sentence by sentence and tries to explain what's going on. Sadly this great podcast was interrupted by Frank's sudden death.
That would seem to me to be the inevitable result of such an endeavor given the relative scales of Ulysses and a typical human life span. Even just trying to read Ulysses carries a certain non-negligible risk in this regard. I myself narrowly escaped a brush with catastrophe when assigned to read Portrait of the Artist as a Young Man when I was myself a young man (in high school). I thank God daily that I lived to warn others.
;-)
He was halfway through “Wandering Rocks” a “mere” 6.75 years in, and I had been estimating he’d be at my favorite “Cyclops” by around now. :(