I’ve had priests tell me they don’t need specific numbers, like ‘53 instances of impurity’. Rather, they want a ballpark like just once, a couple times, or many times.
The reason for this he said is, we have a tendency to rationalize our sins so we often say “I did X 7 times but one time I stopped quickly and two other times I was really stressed.”
This kind of mentioning sins is rationalizing them, its best if we are quick and to the point so we don’t try and rationalize which means we aren’t really as sorry as we should be potentially. Just say like “I did [insert name of sexual sin] once/a few times/many times.”. The priests I’ve confessed with don’t need any more details then that and don’t want to hear them in the confessional either