The Pain! The Agony! (the emotional sting of cutting good scenes)

I have a story novel  headache that I’ve been working on since January 2015. I’ve worked on it exclusively, and as of September I had around 44,900 words.
November is National Novel Writing Month, and instead of writing another story, I’ve decided that I will spend this month editing my Monster Project.
 And that was going really, really well.
Until a few days ago.
it was then that I entered the Problem Zone. The Problem Zone has given me trouble since day one, it’s the part of the story where a lot of important information is introduced and my MC (main character) learns of her father’s death.
I’ve spent hours and hours writing, editing and weeping over these few chapters, trying to make my favourite scenes work with my ever evolving plot. And because of all those hours, I couldn’t bear the thought of removing those scenes.
But tonight I faced the facts and started cutting.
I cut the scene that has two really funny lines.
I cut the scene where my elderly guardian ships the MC and her male friend.
I cut the well written scene where I give an answer that was supposed to be a surprise.
I cut and cut and cut.
And it hurt while I did it, but now I’m starting to think that it was the right choice. The bulk of those scenes supported plot devices I abandoned months days ago. They were just dead weight, holding me back.
If this goes sour and I realize that I really do need some of these scenes, I can always go dumpster-diving in my ‘out takes’ file. But to find out for sure, I need to try the story without those scenes.
So yeah, Johanna you were right. I did have to kill my darlings.