Cutting Chunks out of a Manuscript

I like to think of myself as an organized person. However, when beginning the manuscript for my novel, I just sort of started writing without a plan. I was in graduate school at the time and was one of the only people that didn’t have an internship when everyone else would come to class and complain about the stress of work, classes, and internship responsibilities. I eventually fought against the school to get an internship, rather than follow their advice of waiting an entire year to restart a flawed process. I had to get a civil rights lawyer to scare them into compliance, it was a very long stressful process.
Anyways, that was over two years ago and I’m still trying to get through the endless “tell” sections I wrote previously. In a novel, you want a balance of show and tell. Showing is description through character dialogue and interaction; whereas telling is describing things as the all knowing narrator.
I just recently had to cut out big chunks of a chapter that I really liked but it doesn’t really lead the reader through the story line. I have to do the same thing with other chapters that follow but I am less hesitant about the process because I know that my story will be better off. The beginning chapters have all been edited and added on to. I participated in a Novel Boot Camp online, put on by an editor, Ellen Brock (ellenbrockediting.com). But to give you a sense of where I am in the process, the chapter I had to cut chunks out of took up pages 23-30 out of 140! I am pretty much at the 50,000 word mark but I know that I need to be at least at 80,000 to really consider it complete.
Whenever I go back and make changes to my manuscript, I watch a YouTube video about Dustin Lance Black’s writing process. When I finish the first rough draft, I will follow the techniques Black follows.