Just three and a half weeks ago Gauff was on top of the world, having lifted the trophy at Roland Garros after beating world number one Aryna Sabalenka.
But a lacklustre performance laden with mistakes on her unfavoured surface saw the two-time major winner head out early against the unseeded Yastremska, leading her to question her build-up to the grass-court major.
“I just feel like the surface, I maybe could have used more matches,” she said.
“If you go deep in Roland Garros, you’re debating: ‘do I rush and play that week, or do I take time and play the week before?’ It’s a tricky thing.
“It’s like finding the puzzle. I don’t like to play the week before. It’s a quick turnaround, so I think just trying to learn whether it’s better to train more and maybe play Bad Homburg or Eastbourne.
“If that time comes around again I’ll approach it differently.”
Since winning her first title on the Paris clay last month Gauff has played just one match, a first-round defeat by qualifier Wang Xinyu of China at the Berlin Open.
In that match, she was plagued by double faults and those demons were back to haunt her again at SW19.
Gauff recorded nine double faults and 29 unforced errors compared with just six winners and struggled against Yastremska’s aggressive style and powerful ground strokes.
Success on grass continues to elude her with Wimbledon the only Grand Slam where Gauff is yet to reach the last eight.