Reddit mentions of The Frustrated Songwriter's Handbook: A Radical Guide to Cutting Loose, Overcoming Blocks & Writing the Best Songs of Your Life

You can read the first few pages online on Amazon (try this link), and there's also a Wikipedia page about the Immersion Composition Society, which this book seems to be based on.

my wife got me a Roland RE-20 Space Echo and a copy of The Frustrated Songwriter's Handbook .

I cannot recommend this book enough:
https://www.amazon.com/Frustrated-Songwriters-Handbook-Radical-Overcoming/dp/0879308796/ref=sr_1_1?ie=UTF8&qid=1525181948&sr=8-1&keywords=frustrated+songwriter%27s+handbook

It isn't just some goofy self help book. This is filled with gold. Find a friend, or start a group, and you all dedicate one day a month if you can. You each have 12 hours to write and record 20 BRAND NEW compositions. I've never gotten to 20, and most of the ideas are garbage throwaway tunes, but by the end of the day you'll most likely have 2-3 really solid ideas to build from later. And knowing that your friends are doing the same thing adds a little friendly competition. Meet at the end of the day, play your tunes and laugh your asses off. Trust me, this technique works wonders.

Relevant

It's been posted before but I'll post it again because it needs to be: Frustrated Songwriters Handbook

Its a fairly common "game" to help teach yourself that quantity is better than quality. I'm not sure if this is the origin of the "Immersion Music Method" idea, but I'd heard of it through multiple posts on this subreddit: The Frustrated Songwriter's Handbook. Great book that's worth checking out.

It is a fun and enlightening experience, and I definitely recommend giving it a try sometime!