I hear you! "Getting it done" can be extremely difficult.
In some ways, I am blessed to be (a) self-employed and working from home and (b) married to somewhat of a night owl (and I'm a morning person), which means I can have the first two hours of the day to myself.
I find that discipline matters, and especially the part where I have had to embrace the reality that the world will not "fall apart" if incoming emails to my various businesses get looked at at 9:00 instead of 7:00.
I think the most important "tool" (if you want to call it that) I use is that of only "rough drafting" during my dedicated writing time. During my morning two hours, only the creative is allowed... no editing, re-writing, spell and grammar checking. Just get all the key concepts under a heading down in some form of (often lousy) English. I can edit and clean up stuff while there are distractions, easy enough. It's the creative part that suffers.
RE: Writing in the Age of Distractions