I tried almost every pacing strategy I heard of, but four proved crucial to my recovery.
 

1) Pre-Emptive Rest 

I've called my twice daily 15 minute rests "the secret to my recovery." Taking time out twice a day reduced my symptoms, increased my stamina and made my life more stable. 

Just as important, it gave me a sense of control. Instead of living in response to symptoms, after using regular rests I felt I was planning my life again. This started a "virtuous cycle" in which increased control reduced my anxiety, which in turn gave me a greater sense of control.
 

2) Logging

Record keeping was the second most important strategy and something that took only one or two minutes a day. My logs showed me the connections between my actions and my symptoms, helped me hold myself accountable (black and white proof of being outside my envelope!) and motivated me because I could see progress.
 

3) Consistency in Activity Level

I gained a lot of stability when I asked myself what level of activity I could sustain for a week. Initially, I was caught in push and crash because I set my activity by how I felt on any particular day. 

Then I replaced that with a similar level of activity every day. I came to believe that I could control my symptoms by maintaining a consistent activity level and that I might be able to improve if I kept my activity level below my body's limit (to free energy for healing). That strategy worked!
 

4) Supportive Self-Talk

I changed my internal monologue to be supportive of my efforts, focusing on gains rather than failures and speaking in a reassuring way to myself when things went bad ("remember how all the other relapses have ended, so have patience").
 

In sum, the key to improvement was to live according to a plan, rather than in response to symptoms. Logging showed me what activity level my body could tolerate. Positive self-talk kept my spirits up in tough times.