I am somewhat slower than you were, but in 3 years, I have averaged 4000k/year with several PRs on the 3 distances I care about (10k, half, marathon) and I am currently in the best shape in my life even though I should have peaked years ago.
When it all started, I did not know the streak would make me a better runner. Maybe I could be slightly faster if I took one day off when I have pain, but overall, I am a much better runner than when I trained less. The streak helped me to discover that I have an above-average strength and that I am mentally tougher than most believe.
When I began, I had death thoughts. I then came to the conclusion that as long as I can run, I can fight for a better life. I still have a lot of room for improvement when it comes to non-running activities, but I am alive and I don't give up easily.
Anonymously.