I go through cycles of this, so it isn't new. I do know that when it happens, which is almost always around this time of year, I'm tempted to burn my life to the ground. I don't mean suicide, but rather other really poor life choices. I have to keep it in my mind to stay the course and that things will get better.
Immersion is an essential element when writing a novel. This doesn't mean that it is the most important element (which is a topic that could start a world war) but in order to have enjoyable novel-length story it is neccassary. From a slush reader's standpoint, it is one of my criteria in order to pass a story up.