A self-edit should have you cutting what doesn't add to your written work. Strive for simple, effective construction of phrases to achieve a better final product.
Interviewing a source can be an exciting part of your research, but the prospect of an hours-long transcription job can be a barrier to starting the writing process. Transcription software might be the answer you're looking for.
You may think your manuscript is ready for publication, but are there holes in your story? A beta reader can help determine if there's still work to do.
Being a writer, rather than someone who dreams of being a writer, is a challenge. Insecurity can be the twin of creativity — give yourself permission to just get started.
You have the time to do the things you want to do if you make those things a priority. Make writing a priority and write your book.
Use an editing pass to produce a map of your reader's suspension of disbelief. Once you've created a universe in which your reader is immersed, you can focus on polishing your manuscript for publication.