Breathing makes all the difference! I did W7R1 and it felt good. After stopping W6R3 at 23 min I was a bit worried. Went out early and just got in a rhythm and it worked! 25 minutes, and I even sped up at the end.
I need to practice breathing deeply - definitely can't breathe in through my nose, but getting in some deep breaths is really important.
The other thing that helped was thinking about all of the people in this community - reading your stories and encouraging words really helps to win the mental battle. Thank you!