Thanks for your comment, it adds an extra bit of motivation to see it worked out for you after a year!
I totally agree about the bad sleeping habits, since I've started last month, I've cut out screens from the bedroom, and even if I want to read a book before bed, I do it in the living room. I can now fall asleep within a few minutes when it used to take me a few hours.
I'll take a look at your other article! And perhaps try to occasionally blog about it since it seemed to help you stay on track.
Cheers!

PS: Have you read "The Power of Habits" by Charles Duhigg ? It tackles habits from a scientific point of view and really helped me getting started.