Cannot get to fit all the clues, but I find this to be an interesting answer (edited to fit in the second clue):
Coffee
My infix has been removed.
off
My suffix is this.
I am lost hereee, may be pronounced as "double e", which in turn sounds like doublet--another name for word ladder puzzle, which this puzzle is in a loose sense.
If you can read this, you're on my prefix.
If you can see (C) this
If you read this in the morning, you might guess me sooner - what am I?
The morning coffee :)
The title
The coffee sure may be warm but not sure about riley.