You are selling yourself short if you don’t track your progress. Without writing down your workout times and weights, max reps, and skills developed you have no way to gauge your improvement or identify weaknesses and accomplishments. Most importantly, you are not holding yourself accountable for your performance.
The data can also be used as a pick me up. Maybe you have a bad workout and leave the garage feeling disappointed. A quick look at your log and you see that in the grand scheme it was just one bad day, you PR’ed your CF Total the week before, and three days before you did Helen :28 seconds faster than three months ago. Without that information your imagination can run wild with negative thoughts about your training and it can derail you. Stay on track and positive by logging your workouts!